ࡱ> QSJKLMNOP{`bjbjFF 4,,G%8888***8*, h-5"555666 $hjDU 96699D8855;4nnn9l(8R55}n9nnrzT"{5\- Qw*Hb& Tz|͍< bznm{{67nU8|8 666DD,n^666 9999#**888888  Izvanbolni ki meticilin-rezistentni Staphylococcus aureus molekularna evolucija, karakteristike i zna enje Ana Budimir, Smilja Kaleni Klini ki bolni ki centar Zagreb Klini ki zavod za klini ku i molekularnu mikrobiologiju Sa~etak Meticilin-rezistentni Staphylococcus aureus (MRSA) predstavlja zna ajan medicinski problem s kojim se bolnice suo avaju ve desetljeima; njegova pojava u izvanbolni koj sredini 90-tih godina proalog stoljea otvara meutim novo poglavlje i u izvanbolni kim infekcijama. Izvanbolni ki MRSA razlikuje se od bolni koga po genotipskim i fenotipskim svojstvima. Tipi no za izvanbolni ke MRSA je da su osjetljivi na veinu ne-beta-laktamskih antibiotika. Uzrokuju infekcije u mlaih, prethodno zdravih ljudi a naj eae su uzro nikom teakih infekcija ko~e i mekih tkiva kao i teakih, nekrotizirajuih pneumonija. Kromosomalna kaseta koja sadr~i mecA gen odgovoran za rezistenciju na beta-laktamske antibiotike (SCCmec) u izvanbolni kh izolata je tipa IV ili V, manja je od SCCmec tipi nih za bolni ke izolate (SCCmec I, II, i III). Tipi no je za veliki dio izvanbolni kih MRSA posjedovanje gena za Pantone-Valentine leukocidin (PVL). U dijagnostici izvanbolni kih MRSA koriste se standardne laboratorijske metode a u ugro~enoj populaciji mogue je primijeniti brze molekularne metode za ciljano lije enje i spre avanja airenja izvanbolni kih MRSA izolata. Uvod Staphylococcus aureus (S.aureus) predstavlja jednog od najzna ajnijih i najadaptabilnijih ljudskih patogena. Kolonizira nosni vestibulum u oko 30% zdravih ljudi, i do 50% nekih skupina bolesnika (npr. bolesnici na kroni noj hemodijalizi) a naj eae izaziva infekcije ko~e, potko~nog tkiva ali i bakterijemiju, penumoniju, endokarditis, infekcije kosti i zglobova, infekcije sredianjeg ~iv anog sustava, i druge infekcije. S.aureus razvio je dosada rezistenciju na sve antibiotike koji su koriateni u lije enju stafilokoknih infekcija. Sredinom pedesetih godina proalog stoljea ubrzano se poveao udio izolata rezistentnih na penicilin  ADDIN EN.CITE <EndNote>Jessen196927927917Jessen, O.Rosendal, K.Bulow, P.Faber, V.Eriksen, K. R.Changing staphylococci and staphylococcal infections. A ten-year study of bacteria and cases of bacteremiaN Engl J MedN Engl J Med627-3528112AdolescentAdultAge FactorsAgedBacitracin/pharmacologyBacteriophage TypingChildChild, PreschoolChloramphenicol/pharmacologyCross Infection/epidemiologyDenmarkErythromycin/pharmacologyGenetics, MicrobialHospitalsHumansInfantLysogenyMethicillin/pharmacologyMiddle AgedNeomycin/pharmacology*Penicillin ResistancePenicillins/pharmacologySepticemia/epidemiology/etiology/*microbiology/mortalitySex Factors*Staphylococcal Infections/epidemiology/mortalityStaphylococcus/*drug effects/isolation & purificationStreptomycin/pharmacologyTetracycline/pharmacology1969Sep 185194719http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=5194719 </EndNote>(1) mehanizmom izlu ivanja beta-laktamaze, koji se terapijski primjenjuje od 40-tih godina, da bi danas bio prakti ki napuaten kao lijek izbora. Rezistencija na makrolide, linkozamide i streptogramin B razvila se putem klasi nih mehanizama: ribosomskom modifikacijom, posredovanom erm genom, i aktivnim efluksom makrolida, posredovanom genima msrA  ADDIN EN.CITE <EndNote><Cite><Author>Leclercq</Author><Year>1991</Year><RecNum>41</RecNum><record><rec-number>41</rec-number><ref-type name="Journal Article">17Leclercq, R.Courvalin, P.Service de Bacteriologie-Virologie-Hygiene, Hopital Henri Mondor, Universite Paris XII, Creteil, France.Bacterial resistance to macrolide, lincosamide, and streptogramin antibiotics by target modificationAntimicrob Agents ChemotherAntimicrob Agents Chemother1267-72357Anti-Bacterial Agents/*pharmacologyBacteria/*drug effects/geneticsDrug Resistance, Microbial*MacrolidesVirginiamycin/*pharmacology1991Jul1929280http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=1929280 (2). Rezistencija na kinolone temelji se na postojanju efluks pumpe NorA i strukturnim mutacijama na ciljnom mjestu djelovanja kinolona, topoizomerazi IV i DNA girazi  ADDIN EN.CITE Fournier199833033017<style face="normal" font="default" charset="238" size="100%">Mutation in topoisomerase IV and DNA gyrase of </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%">: Novel pleiotropic effects on quinolone and coumarin activity.</style>Antimicrob Agents Chemother(3). Godine 1997. opisani su i izolati koji pokazuju smanjenu osjetljivost  ADDIN EN.CITE Hiramatsu199728028017Hiramatsu, K.Hanaki, H.Ino, T.Yabuta, K.Oguri, T.Tenover, F. C.Methicillin-resistant Staphylococcus aureus clinical strain with reduced vancomycin susceptibilityJ Antimicrob ChemotherJ Antimicrob Chemother135-6401*AminoglycosidesAmpicillin/therapeutic useAnti-Bacterial Agents/therapeutic useDibekacin/analogs & derivatives/therapeutic useDrug Therapy, Combination/therapeutic useHumansInfantMaleMethicillin ResistanceMicrobial Sensitivity TestsPulmonary Atresia/complications/surgeryStaphylococcal Infections/*drug therapyStaphylococcus aureus/*drug effectsSulbactam/therapeutic useVancomycin/*pharmacology/*therapeutic useWounds and Injuries/microbiology1997Jul9249217http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=9249217 (4) a 2002. godine i rezistenciju na vankomicin, posredovanu vanA genom  ADDIN EN.CITE 200228128117From the Centers for Disease Control and Prevention. Vancomycin resistant Staphylococcus aureus--Pennsylvania, 2002JamaJama211628817Bacterial Proteins/geneticsCarbon-Oxygen Ligases/geneticsCarrier Proteins/genetics*HexosyltransferasesHumansMuramoylpentapeptide Carboxypeptidase/geneticsPenicillin-Binding ProteinsPennsylvania/epidemiology*Peptidyl TransferasesStaphylococcal Infections/drug therapy/epidemiology/*microbiologyStaphylococcus aureus/*drug effects/genetics*Vancomycin Resistance/genetics2002Nov 612425311http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12425311 (5). Od tada nije bilo izvijeaa o punoj rezistenciji na vankomicin. Budui da su izoksazolilpenicilini (penicilini otporni na djelovanje stafilokokne beta-laktamaze) najdjelotvorniji antistafilokokni lijekovi najviae problema u lije enju stafilokoknih infekcija imao je razvoj meticilinske rezistencije i time pojava izolata S.aureus rezistentnih na sve beta-laktamske antibiotike  ADDIN EN.CITE <EndNote><Cite><Author>Lowy</Author><Year>2003</Year><RecNum>2</RecNum><record><rec-number>2</rec-number><ref-type name="Journal Article">17Lowy, F. D.Departments of Medicine and Pathology, Columbia University, College of Physicians and Surgeons, New York, New York 10032, USA. fl189@columbia.eduAntimicrobial resistance: the example of Staphylococcus aureusJ Clin InvestJ Clin Invest1265-731119Anti-Bacterial Agents/metabolism/pharmacology/therapeutic useCross Infection*Drug Resistance, BacterialHumansPenicillins/metabolism/pharmacology/therapeutic useQuinolones/metabolism/pharmacology/therapeutic useResearch Support, Non-U.S. Gov'tStaphylococcal Infections/drug therapy/*microbiologyStaphylococcus aureus/*drug effects/genetics/*physiologyVancomycin/metabolism/pharmacology/therapeutic use2003May12727914http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12727914 (6). Meticilin rezistentni S.aureus (MRSA) Stafilokokna kromosomalna mec regija (SCCmec) Genetsku podlogu meticilinske rezistencije ini prisutnost mecA gena  ADDIN EN.CITE <EndNote><Cite><Author>Chambers</Author><Year>1997</Year><RecNum>284</RecNum><record><rec-number>284</rec-number><ref-type name="Journal Article">17Chambers, H. F.Medical Service, San Francisco General Hospital 94143, USA. chipc@itsa.ucsf.eduMethicillin resistance in staphylococci: molecular and biochemical basis and clinical implicationsClin Microbiol RevClin Microbiol Rev781-91104Anti-Bacterial Agents/pharmacology*Bacterial ProteinsCarrier Proteins/geneticsDNA Transposable ElementsGenome, Bacterial*HexosyltransferasesHumansMethicillin Resistance/*geneticsMicrobial Sensitivity TestsMuramoylpentapeptide Carboxypeptidase/geneticsPenicillin-Binding Proteins*Peptidyl TransferasesResearch Support, U.S. Gov't, P.H.S.Staphylococcal Infections/*drug therapyStaphylococcus aureus/*drug effects/genetics1997Oct9336672http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=9336672 (7) koji se nalazi na mobilnom geneti kom elementu na kromosomu (SCC-staphylococcal chromosomal cassette mec)  ADDIN EN.CITE <EndNote><Cite><Author>Chambers</Author><Year>1997</Year><RecNum>284</RecNum><record><rec-number>284</rec-number><ref-type name="Journal Article">17Chambers, H. F.Medical Service, San Francisco General Hospital 94143, USA. chipc@itsa.ucsf.eduMethicillin resistance in staphylococci: molecular and biochemical basis and clinical implicationsClin Microbiol RevClin Microbiol Rev781-91104Anti-Bacterial Agents/pharmacology*Bacterial ProteinsCarrier Proteins/geneticsDNA Transposable ElementsGenome, Bacterial*HexosyltransferasesHumansMethicillin Resistance/*geneticsMicrobial Sensitivity TestsMuramoylpentapeptide Carboxypeptidase/geneticsPenicillin-Binding Proteins*Peptidyl TransferasesResearch Support, U.S. Gov't, P.H.S.Staphylococcal Infections/*drug therapyStaphylococcus aureus/*drug effects/genetics1997Oct9336672http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=9336672 </record></Cite></EndNote>(7). mecA gen kodira protein koji ve~e penicilin (PBP) 2a, veli ine 78 kDa, koji je strukturno promijenjen u odnosu na PBP 2 u meticilin-osjetljivih sojeva, zbog ega se na njega ne ve~u beta-laktamski antibiotici, a posljedica toga je neprekinuta sinteza bakterijske stijenke i rezistencija na beta-laktamske antibiotike. Postojanje mecA gena na kromosomu S.aureus poznato je ve od 1975.godine  ADDIN EN.CITE <EndNote><Cite><Author>Sjostrom</Author><Year>1975</Year><RecNum>334</RecNum>33417<style face="normal" font="default" charset="238" size="100%">Transformation reveals a chromosomal locus of the gene(s) for methicillin-resistance in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style>J BacteriolSjostrom197533433417<style face="normal" font="default" charset="238" size="100%">Transformation reveals a chromosomal locus of the gene(s) for methicillin-resistance in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style>J Bacteriol(8), a kasnije su odreene i sekvencije regulatornih gena mecI i mecR1, kao i ostatka SCCmec elementa. SCCmec se nalazi na fiksnom mjestu na kromosomu unutar orfX, nepoznate funkcije ali u neposrednoj blizini podru ja na kojem prepisivanje po inje, ato objanjava njegovu brzu ekspresiju, vrlo kratko nakon prepisivanja  ADDIN EN.CITE Ito2003171717Ito, T.Okuma, K.Ma, X. X.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. teruybac@med.juntendo.ac.jpInsights on antibiotic resistance of Staphylococcus aureus from its whole genome: genomic island SCCDrug Resist UpdatDrug Resist Updat41-5261Community-Acquired Infections/drug therapy/microbiologyCross Infection/drug therapy/microbiologyDNA Transposable ElementsDrug Resistance, Bacterial/*geneticsDrug Resistance, Multiple, Bacterial/genetics*Genome, BacterialMethicillin Resistance/geneticsMutationStaphylococcal Infections/drug therapy/microbiologyStaphylococcus aureus/drug effects/*genetics2003Feb12654286http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12654286 (9). Prepisivanje mecA gena regulirano je djelovanjem represora, MecI i transmembranske signalne molekule, MecRI.  ADDIN EN.CITE Berger-Bachi20023317Berger-Bachi, B.Rohrer, S.Institute of Medical Microbiology, University of Zurich, Gloriastrasse 32, PO Box, 8028 Zurich, Switzerland. bberger@immv.unizh.chFactors influencing methicillin resistance in staphylococciArch MicrobiolArch Microbiol165-711783Bacterial Proteins/genetics/metabolismCarrier Proteins/genetics/metabolismGene Expression Regulation, Bacterial*HexosyltransferasesHumans*Methicillin Resistance/geneticsMuramoylpentapeptide Carboxypeptidase/genetics/metabolismPenicillin-Binding Proteins*Peptidyl TransferasesRepressor Proteins/genetics/metabolismResearch Support, Non-U.S. Gov't*Staphylococcus aureus/*drug effects2002Sep12189417http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12189417 (10). Gen mecA, kao i regulatorni geni mecI i mecRI nalaze se na mobilnom geneti kom elementu kojeg nazivamo stafilokokna kromosomalna kaseta mec (SCCmec) veli ine 2,1 kb. SCCmec u sebi nosi gene za antibiotsku rezistenciju i nema, koliko je poznato, gena za imbenike virulencije  ADDIN EN.CITE <EndNote><Cite><Author>Ito</Author><Year>2001282817Ito, T.Katayama, Y.Asada, K.Mori, N.Tsutsumimoto, K.Tiensasitorn, C.Hiramatsu, K.Department of Bacteriology, Juntendo University, Tokyo 113-8421, Japan.Structural comparison of three types of staphylococcal cassette chromosome mec integrated in the chromosome in methicillin-resistant Staphylococcus aureusAntimicrob Agents ChemotherAntimicrob Agents Chemother1323-36455Amino Acid Sequence*Bacterial ProteinsBase SequenceCarrier Proteins/*genetics*Chromosomes, BacterialEvolution, Molecular*HexosyltransferasesHumansMethicillin Resistance/*geneticsMolecular Sequence DataMuramoylpentapeptide Carboxypeptidase/*geneticsMutagenesis, InsertionalPenicillin-Binding Proteins*Peptidyl TransferasesPhylogenyPlant Proteins/classification/geneticsResearch Support, Non-U.S. Gov'tRestriction MappingSequence Homology, Amino AcidSequence Homology, Nucleic AcidStaphylococcus aureus/*genetics2001May11302791http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11302791 </urls></record></Cite></EndNote>(11). Do sada je poznato pet SCCmec tipova veli ine od 20.9 do 66,9 kb i nekoliko podtipova  ADDIN EN.CITE <EndNote><Cite><Author>Ito</Author><Year>2001</Year><RecNum>28</RecNum><record><rec-number>28</rec-number><ref-type name="Journal Article">17Ito, T.Katayama, Y.Asada, K.Mori, N.Tsutsumimoto, K.Tiensasitorn, C.Hiramatsu, K.Department of Bacteriology, Juntendo University, Tokyo 113-8421, Japan.Structural comparison of three types of staphylococcal cassette chromosome mec integrated in the chromosome in methicillin-resistant Staphylococcus aureusAntimicrob Agents ChemotherAntimicrob Agents Chemother1323-36455Amino Acid Sequence*Bacterial ProteinsBase SequenceCarrier Proteins/*genetics*Chromosomes, BacterialEvolution, Molecular*HexosyltransferasesHumansMethicillin Resistance/*geneticsMolecular Sequence DataMuramoylpentapeptide Carboxypeptidase/*geneticsMutagenesis, InsertionalPenicillin-Binding Proteins*Peptidyl TransferasesPhylogenyPlant Proteins/classification/geneticsResearch Support, Non-U.S. Gov'tRestriction MappingSequence Homology, Amino AcidSequence Homology, Nucleic AcidStaphylococcus aureus/*genetics2001May11302791http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11302791 Ito2004141417Ito, T.Ma, X. X.Takeuchi, F.Okuma, K.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, Japan. teruybac@med.juntendo.ac.jpNovel type V staphylococcal cassette chromosome mec driven by a novel cassette chromosome recombinase, ccrCAntimicrob Agents ChemotherAntimicrob Agents Chemother2637-51487Amino Acid Sequence*Bacterial ProteinsBase SequenceChromosomes, Bacterial/*geneticsDNA PrimersDNA Transposable Elements/geneticsDNA, Bacterial/geneticsMethicillin ResistanceMolecular Sequence DataOpen Reading Frames/geneticsPhylogenyPlasmids/geneticsRecombinases/*genetics/*metabolismRecombination, GeneticReverse Transcriptase Polymerase Chain ReactionStaphylococcus aureus/*genetics2004Jul15215121http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15215121 (11, 12). SCCmec tip definiraju razli ite kombinacije mecA kompleksa i gena ccr (Cassette Chromosome Recombinase). SCCmec tip I, (34,3 kb), IV (20,9 do 24,3 kb) i V (28 kb) isklju ivo u sebi nose gene za kodiranje rezistencije na beta-laktamske antibiotike, iako su MRSA izolati SCCmec tipa I gotovo uvijek multirezistentni. Pretpostavlja se da su geni rezistencije na druge antibiotike smjeteni drugdje na kromosomu. SCCmec tipovi II i III ( 53,0 kb i 66,9 kb) kodiraju i gene rezistencije na druge antibiotike, koji se nalaze na integriranim plazmidima, (pUB110, pl258 i pT181) i transpozonu (Tn554). Plazmid pUB110 ima gen ant(4`) koji kodira rezistenciju na kanamicin, tobramicin i bleomicin, na pl258 se nalaze geni koji kodiraju beta-laktamaze i rezistenciju na teke metale. Plazmid pT181 kodira tetraciklinsku rezistenciju, dok transpozon Tn554 sadr~i ermA gen zbog kojeg nastaje inducibilna rezistencija na makrolide, linkozamide i streptogramin (MLS) ADDIN EN.CITE <EndNote><Cite><Author>Ito</Author><Year>2003</Year><RecNum>171717Ito, T.Okuma, K.Ma, X. X.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. teruybac@med.juntendo.ac.jpInsights on antibiotic resistance of Staphylococcus aureus from its whole genome: genomic island SCCDrug Resist UpdatDrug Resist Updat41-5261Community-Acquired Infections/drug therapy/microbiologyCross Infection/drug therapy/microbiologyDNA Transposable ElementsDrug Resistance, Bacterial/*geneticsDrug Resistance, Multiple, Bacterial/genetics*Genome, BacterialMethicillin Resistance/geneticsMutationStaphylococcal Infections/drug therapy/microbiologyStaphylococcus aureus/drug effects/*genetics2003Feb12654286http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12654286 Ito2001282817Ito, T.Katayama, Y.Asada, K.Mori, N.Tsutsumimoto, K.Tiensasitorn, C.Hiramatsu, K.Department of Bacteriology, Juntendo University, Tokyo 113-8421, Japan.Structural comparison of three types of staphylococcal cassette chromosome mec integrated in the chromosome in methicillin-resistant Staphylococcus aureusAntimicrob Agents ChemotherAntimicrob Agents Chemother1323-36455Amino Acid Sequence*Bacterial ProteinsBase SequenceCarrier Proteins/*genetics*Chromosomes, BacterialEvolution, Molecular*HexosyltransferasesHumansMethicillin Resistance/*geneticsMolecular Sequence DataMuramoylpentapeptide Carboxypeptidase/*geneticsMutagenesis, InsertionalPenicillin-Binding Proteins*Peptidyl TransferasesPhylogenyPlant Proteins/classification/geneticsResearch Support, Non-U.S. Gov'tRestriction MappingSequence Homology, Amino AcidSequence Homology, Nucleic AcidStaphylococcus aureus/*genetics2001May11302791http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11302791 Ito2004141417Ito, T.Ma, X. X.Takeuchi, F.Okuma, K.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, Japan. teruybac@med.juntendo.ac.jpNovel type V staphylococcal cassette chromosome mec driven by a novel cassette chromosome recombinase, ccrCAntimicrob Agents ChemotherAntimicrob Agents Chemother2637-51487Amino Acid Sequence*Bacterial ProteinsBase SequenceChromosomes, Bacterial/*geneticsDNA PrimersDNA Transposable Elements/geneticsDNA, Bacterial/geneticsMethicillin ResistanceMolecular Sequence DataOpen Reading Frames/geneticsPhylogenyPlasmids/geneticsRecombinases/*genetics/*metabolismRecombination, GeneticReverse Transcriptase Polymerase Chain ReactionStaphylococcus aureus/*genetics2004Jul15215121http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15215121 (9, 11, 12). SCCmec takoer sadr~i u sebi insercijske sekvencije, kao ato je IS431  ADDIN EN.CITE <EndNote><Cite><Author>Katayama</Author><Year>2001</Year><RecNum>27</RecNum><record><rec-number>27</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors>Katayama, Y.Ito, T.Hiramatsu, K.Department of Bacteriology, Faculty of Medicine, Juntendo University, Tokyo, Japan.Genetic organization of the chromosome region surrounding mecA in clinical staphylococcal strains: role of IS431-mediated mecI deletion in expression of resistance in mecA-carrying, low-level methicillin-resistant Staphylococcus haemolyticusAntimicrob Agents ChemotherAntimicrob Agents Chemother1955-63457*Bacterial ProteinsCarrier Proteins/*genetics/metabolismChromosomes, BacterialDNA Transposable Elements/geneticsGene Deletion*Genome, Bacterial*HexosyltransferasesHumansMethicillin Resistance/*geneticsMuramoylpentapeptide Carboxypeptidase/*genetics/metabolismPenicillin-Binding Proteins*Peptidyl TransferasesRepressor Proteins/*geneticsResearch Support, Non-U.S. Gov'tStaphylococcus/*geneticsTranscription, Genetic2001Jul11408208http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11408208 (13). U ekspresiji rezistencije na meticilin sudjeluju i geni fem (engl. factor essential for the expression of methicillin resistance) i aux (engl. auxillary). Najzna ajnije mjesto meu njima zauzima fem AB ija inaktivacija djeluje na smanjenje ekspresije mecA gena  ADDIN EN.CITE <EndNote><Cite><Author>Carbon</Author><Year>2000</Year><RecNum>420</RecNum><record><rec-number>420</rec-number><ref-type name="Journal Article">17<style face="normal" font="default" charset="238" size="100%">MRSA and MRSE: is there an answer</style><style face="normal" font="default" size="100%"> </style>Clin Microbiol Infect(14). Osim MRSA sojeva, koji su definirani prisutnoau mecA gena, postoje izolati koji pokazuju smanjenu osjetljivost na semisintetske peincilinske antibiotike zbog hiperprodukcije -laktamaza  ADDIN EN.CITE <EndNote><Cite><Author>Massida</Author><Year>1992</Year><RecNum>42142117<style face="normal" font="default" charset="238" size="100%">Evidence for a methicillin-hidrolysing beta-lactamase in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> strains using polymerase chain reaction </style>FEMS Microbiol Lett(15). Testom disk-difuzije ti se sojevi ne mogu razlikovati od MRSA. Minimalne inhibitorne koncentracije oksacilina za takve sojeve nikad nisu vee do 12,5 mg/L, stoga se nazivaju grani no rezistentnima (engl. borderline oxacillin resistant S. aureus, skraeno BORSA)  ADDIN EN.CITE <EndNote><Cite><Author>Hiramatsu</Author><Year>1992</Year><RecNum>422</RecNum><record><rec-number>422</rec-number>17<style face="normal" font="default" charset="238" size="100%">Analysis of borderline-resistant strains of methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> using polymerase chain reaction</style>Microbiol Immunol(16). Podrijetlo mecA i SCCmec gena Osim S. aureus, i koagulaza-negativni  ADDIN EN.CITE CoNS917Ma, X. X.Galiana, A.Pedreira, W.Mowszowicz, M.Christophersen, I.Machiavello, S.Lope, L.Benaderet, S.Buela, F.Vincentino, W.Albini, M.Bertaux, O.Constenla, I.Bagnulo, H.Llosa, L.Ito, T.Hiramatsu, K.Juntendo University, Tokyo, Japan.Community-acquired methicillin-resistant Staphylococcus aureus, UruguayEmerg Infect DisEmerg Infect Dis973-6116Adhesins, Bacterial/geneticsAdultAnti-Bacterial Agents/pharmacologyCommunity-Acquired Infections/*epidemiology/microbiology/mortality*Disease Outbreaks*Drug Resistance, Multiple, Bacterial/geneticsHumansLeukocidins/genetics*Methicillin ResistanceMicrobial Sensitivity TestsMiddle AgedResearch Support, Non-U.S. Gov'tStaphylococcal Infections/*epidemiology/microbiology/mortalityStaphylococcus aureus/*drug effects/genetics/pathogenicityUruguay/epidemiology2005Jun15963301http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15963301 (17) stafilokoki mogu sadr~avati SCCmec. Spekulira se da je SCCmec dospio u S.aureus horizontalnim transferom iz koagulaza-negativnih stafilokoka  ADDIN EN.CITE <EndNote><Cite><Author>Mongkolrattanothai</Author><Year>2004</Year><RecNum>81</RecNum><record><rec-number>81</rec-number>17Mongkolrattanothai, K.Boyle, S.Murphy, T. V.Daum, R. S.Section of Pediatric Infectious Diseases, Department of Pediatrics, University of Chicago, Chicago, Illinois 60637, USA.Novel non-mecA-containing staphylococcal chromosomal cassette composite island containing pbp4 and tagF genes in a commensal staphylococcal species: a possible reservoir for antibiotic resistance islands in Staphylococcus aureusAntimicrob Agents ChemotherAntimicrob Agents Chemother1823-36485Amino Acid SequenceBacterial Proteins/*geneticsBase SequenceCarrier Proteins/*geneticsChildChromosomes, Bacterial/*geneticsDNA, Bacterial/geneticsDrug Resistance, Bacterial/*geneticsHexosyltransferases/*geneticsHumansMethicillin Resistance/geneticsMolecular Sequence DataMultigene Family/geneticsMuramoylpentapeptide Carboxypeptidase/*geneticsPenicillin-Binding ProteinsPeptidyl Transferases/*geneticsPolymorphism, Restriction Fragment LengthPregnancy Proteins/*geneticsRecombination, GeneticRepetitive Sequences, Nucleic AcidResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.Reverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/microbiologyStaphylococcus/drug effects/*geneticsStaphylococcus aureus/drug effects/geneticsStaphylococcus epidermidis/drug effects/geneticsTransferases (Other Substituted Phosphate Groups)/*genetics2004May15105141http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15105141 (18). Najveu homolognost s mecA genom nalazimo u genetskom elementu ~ivotinjske komenzalne bakterije Staphylococcus sciuri  ADDIN EN.CITE <EndNote><Cite><Author>Couto</Author><Year>2003</Year><RecNum>390</RecNum><record><rec-number>390</rec-number><ref-type name="Journal Article">17<style face="normal" font="default" charset="238" size="100%">Development of methicillin-resistance in clinical isolates of Staphylococcus sciuri by transcriptional activation of the mecA homologue native to the species</style>J Bacteriol(19), koja posjeduje genetski element koji kodira PBP koji ima 87,8% homologije s PBP 2a. Izolati S. sciuri su uglavnom osjetljivi na meticilin, ali rastom u mediju u kojem se nalazi meticilin, postaju rezistentni na meticilin, bilo da je rije  o poveanoj transkripciji mecA homologa ili to kastoj mutaciji promotora  ADDIN EN.CITE <EndNote><Cite><Author>Wu</Author><Year>2001</Year><RecNum>85</RecNum><record><rec-number>85</rec-number><ref-type name="Journal Article">17Wu, S. W.de Lencastre, H.Tomasz, A.Laboratory of Microbiology, The Rockefeller University, New York, New York 10021, USA.Recruitment of the mecA gene homologue of Staphylococcus sciuri into a resistance determinant and expression of the resistant phenotype in Staphylococcus aureusJ BacteriolJ Bacteriol2417-241838Anti-Bacterial Agents/pharmacology*Bacterial ProteinsBlotting, WesternCarrier Proteins/*genetics/metabolismGenes, Bacterial*HexosyltransferasesLactams/pharmacologyMethicillin Resistance/*geneticsMicrobial Sensitivity TestsMuramoylpentapeptide Carboxypeptidase/*genetics/metabolismMutationPenicillin-Binding Proteins*Peptidyl TransferasesPhenotypeResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.Staphylococcus/*drug effects/geneticsStaphylococcus aureus/*drug effects/genetics/*metabolismTranscription, GeneticTransduction, Genetic2001Apr11274099http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11274099 (20). Postoje izvjetaji koji govore u prilog in vivo transferu SCCmec kromosomskog dijela izmeu izogenih MSSA i MRSA izolata  ADDIN EN.CITE <EndNote><Cite><Author>Mongkolrattanothai</Author><Year>2003</Year><RecNum>294</RecNum><record><rec-number>294</rec-number><ref-type name="Journal Article">17</ref-type><contributors>Mongkolrattanothai, K.Boyle, S.Kahana, M. D.Daum, R. S.Section of Pediatric Infectious Diseases, University of Chicago, Department of Pediatrics, Chicago, Illinois 60637, USA.Severe Staphylococcus aureus infections caused by clonally related community-acquired methicillin-susceptible and methicillin-resistant isolatesClin Infect DisClin Infect Dis1050-8378AdolescentAdultChildChild, PreschoolCommunity-Acquired Infections/*microbiologyFemaleHumansInfantMaleMethicillin/*pharmacologyMethicillin Resistance/*geneticsMicrobial Sensitivity TestsStaphylococcal Infections/*microbiologyStaphylococcus aureus/*drug effects/genetics2003Oct 1514523769http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14523769 (21). Zabilje~en je i in vivo transfer SCCmec u novoroen eta u Nizozemskoj. Nakon izolacije MSSA u istog djeteta je naen izogeni MRSA iji mecA gen je bio identi an mecA genu iz Staphylococcus epidermidis izoliranog od istog bolesnika  ADDIN EN.CITE <EndNote>Wielders2001868617Wielders, C. L.Vriens, M. R.Brisse, S.de Graaf-Miltenburg, L. A.Troelstra, A.Fleer, A.Schmitz, F. J.Verhoef, J.Fluit, A. C.In-vivo transfer of mecA DNA to Staphylococcus aureus [corrected]LancetLancet1674-53579269Bacteremia/microbiology*Bacterial ProteinsCarrier Proteins/*geneticsCross Infection/microbiologyDNA FingerprintingDNA, Bacterial/*geneticsGene Transfer, Horizontal/*geneticsGenotype*HexosyltransferasesHumansInfant, NewbornMaleMicrobial Sensitivity TestsMuramoylpentapeptide Carboxypeptidase/*geneticsPenicillin-Binding Proteins*Peptidyl TransferasesStaphylococcal Infections/microbiologyStaphylococcus aureus/*genetics2001May 2611425376http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11425376 (22). Epidemiologija Staphylococcus aureus rezistentnih na meticilin (MRSA) Staphylococcus aureus rezistentan na meticilin prvi put se pojavio meu bolni kim izolatima 1961. godine  ADDIN EN.CITE <EndNote><Cite><Author>Jevons</Author><Year>1961</Year><RecNum>331</RecNum><record><rec-number>331</rec-number><ref-type name="Journal Article">17</ref-type><style face="normal" font="default" charset="238" size="100%">"Celbenin" -resistant staphylococci</style>Bmj(23) kao izolat iz krvi. Prvi MRSA izolat, porijeklom iz 1961. godine iz Velike Britanije, imao je SCCmec I i tipi ni je predstavnik Arhai nog klona koji se proairio svijetom u aezdesetim godinama. Meticilin, izvornog naziva celbenin je uveden u terapiju u Europi 1959.-1960. godine. Iako se meticilin ne upotrebljava viae u terapiji stafilokoknih infekcija, akronim MRSA je ostao a odnosi se na Staphylococcus aureus koji je rezistentan na sve bata-laktamske antibiotike, uklju ujui cefalosporine i karbapeneme. Prva MRSA epidemija je opisana 1963. godine  ADDIN EN.CITE <EndNote><Cite><Author>Stewart</Author>196328728717Stewart, G. T.Holt, R. J.<style face="normal" font="default" size="100%">Evolutio</style><style face="normal" font="default" charset="238" size="100%">n</style><style face="normal" font="default" size="100%"> of natural resistance to the newer penicillins</style>Br Med JBr Med J308-1115326*Drug Resistance, Microbial*Methicillin*Penicillin G*Penicillins*Staphylococcal Infections1963Feb 213984091http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=PubMed&amp;dopt=Citation&amp;list_uids=13984091 </url></related-urls></urls></record></Cite></EndNote>(24). Od aezdesetih godina MRSA sojevi su se proairili meu europskim bolnicama. Sedamdesetih je i u SAD zabilje~ena pojava MRSA izolata kao i u Japanu i Australiji. 1982. godine MRSA SCCmec tipa II je otkriven u Japanu i New York/Japan klon kojem pripada se takoer proairio, nakon ega slijedi izolacija MRSA soja SCCmec tipa III na Novom Zelandu. Prvi MRSA izolati SCCmec tipa IV pojavili su se u devedesetim godinama proalog stoljea u SAD. U Australiji je 2000. pronaen prvi izolat SCCmec tipa V  ADDIN EN.CITE <EndNote><Cite ExcludeYear="1"><Author>WIS</Author><record><rec-number>118</rec-number><ref-type name="Journal Article">17Wisplinghoff, H.Rosato, A. E.Enright, M. C.Noto, M.Craig, W.Archer, G. L.Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia 23292, USA.Related clones containing SCCmec type IV predominate among clinically significant Staphylococcus epidermidis isolatesAntimicrob Agents Chemother3574-94711AllelesBacterial Proteins/*geneticsDNA PrimersGenotypeMethicillin ResistanceResearch Support, U.S. Gov't, P.H.S.Reverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/*microbiologyStaphylococcus epidermidis/*genetics2003Nov14576120http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14576120 (25). Danas je MRSA jedan od naj eaih uzro nika bakterijskih nozokomijalnih infekcija, uzrokujui 40-70% Staphylococcus aureus infekcija u jedinicama intenzivne njege  ADDIN EN.CITE <EndNote><Cite><Author>Diekema</Author><Year>2001</Year><RecNum>193</RecNum><record><rec-number>19317Diekema, D. J.Pfaller, M. A.Schmitz, F. J.Smayevsky, J.Bell, J.Jones, R. N.Beach, M.Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA. daniel-diekema@uiowa.eduSurvey of infections due to Staphylococcus species: frequency of occurrence and antimicrobial susceptibility of isolates collected in the United States, Canada, Latin America, Europe, and the Western Pacific region for the SENTRY Antimicrobial Surveillance Program, 1997-1999Clin Infect DisClin Infect DisS114-3232 Suppl 2Anti-Bacterial Agents/therapeutic useCanada/epidemiologyDrug Resistance, MicrobialEurope/epidemiologyFar East/epidemiologyHumansLatin America/epidemiologyMethicillin ResistanceMicrobial Sensitivity TestsStaphylococcal Infections/drug therapy/*epidemiologyUnited States/epidemiology2001May 1511320452http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11320452 (26). U Hrvatskoj je prvo izvjeae o zna enju MRSA sojeva objavljeno 1997. godine  ADDIN EN.CITE <EndNote><Cite><Author>Tambic</Author><Year>1997</Year><RecNum>435</RecNum><record><rec-number>435</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><style face="normal" font="default" charset="238" size="100%">Meticilin-rezistentni </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</sty��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������l�e�>�<�s�t�y�l�e� �f�a�c�e�=�"�n�o�r�m�a�l�"� �f�o�n�t�=�"�d�e�f�a�u�l�t�"� �c�h�a�r�s�e�t�=�"�2�3�8�"� �s�i�z�e�=�"�1�0�0�%�"�>� �(�M�R�S�A�)�,� �p�r�e�d�i�k�t�o�r� �k�r�a�j�a� �a�n�t�i�b�i�o�t�s�k�e� �e�r�e�-�d�i�j�a�g�n�o�z�a�,� �e�p�i�d�e�m�i�o�l�o�g�i�j�a�,� �t�e�r�a�p�i�j�a� �i� �s�p�r�e� a�v�a�n�j�e� �ai�r�e�n�j�a�<�/�s�t�y�l�e�>�<�/�t�i�t�l�e�>�<�s�e�c�o�n�d�a�r�y�-�t�i�t�l�e�>�<�s�t�y�l�e� �f�a�c�e�=�"�n�o�r�m�a�l�"� �f�o�n�t�=�"�d�e�f�a�u�l�t�"� �c�h�a�r�s�e�t�=�"�2�3�8�"� �s�i�z�e�=�"�1�0�0�%�"�>�L�i�j�e�  �V�j�e�s�n�<�/�s�t�y�l�e�>�<�/�s�e�c�o�n�d�a�r�y�-�t�i�t�l�e�>�<�/�t�i�t�l�e�s�>�<�p�e�r�i�o�d�i�c�a�l�>�<�f�u�l�l�-�t�i�t�l�e�>�L�i�j�e�  �V�j�e�s�n�<�/�f�u�l�l�-�t�i�t�l�e�>�<�/�p�e�r�i�o�d�i�c�a�l�>�<�p�a�g�e�s�>�<�s�t�y�l�e� �f�a�c�e�=�"�n�o�r�m�a�l�"� �f�o�n�t�=�"�d�e�f�a�u�l�t�"� �c�h�a�r�s�e�t�=�"�2�3�8�"� �s�i�z�e�=�"�1�0�0�%�"�>�1�6�6�-�7�1�<�/�s�t�y�l�e�>�<�/�p�a�g�e�s�>�<�v�o�l�u�m�e�>�<�s�t�y�l�e� �f�a�c�e�=�"�n�o�r�m�a�l�"� �f�o�n�t�=�"�d�e�f�a�u�l�t�"� �c�h�a�r�s�e�t�=�"�2�3�8�" size="100%">119</style></volume><dates><year><style face="normal" font="default" charset="238" size="100%">1997</style></year></dates><urls></urls></record></Cite></EndNote>(27). Podaci o prevalenciji MRSA izolata razlikuju se u raznim dijelovima svijeta kao ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������i� �m�e�u� �b�o�l�n�i�c�a�m�a� �i� �i�z�n�o�s�e� �o�d� �0�,�6�%� �u� �N�o�r�v�e�ak�o�j� �d�o� �6�6�,�8�%� �u� �J�a�p�a�n�u�,� �at�o� �j�e� �p�r�i�k�a�z�a�n�o� �u� �T�a�b�l�i�c�i� �1� �.� � �T�a�b�l�i�c�a� �1�.� �P�r�e�v�a�l�e�n�c�i�j�a� �M�R�S�A� �i�z�o�l�a�t�a� �i�z� �h�e�m�o�k�u�l�t�u�r�a� � �D�r�~a�v�a�� �N�o�r�v�e�ak�a�� �H�r�v�a�t�s�k�a�� �R�u�m�u�n�j�s�k�a�� �S�A�D�� �J�a�p�a�n���%� �M�R�S�A� �i�z� �k�r�v�i�� �0�,�6�1�� �3�7�,�6�1�� �6�1�,�4�1�� �2�5�,�3�2�� �6�6�,�8�2��� �L�e�g�e�nda: 1 podaci dobiveni iz EARSS interaktivne baze na  HYPERLINK "http://www.earss.com" www.earss.com 2 podaci dobiveni iz SENTRY studije  ADDIN EN.CITE <EndNote><Cite><Author>Diekema</Author><Year>2001</Year><RecNum>193</RecNum><record><rec-number>193</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><author>Diekema, D. J.</author><author>Pfaller, M. A.</author><author>Schmitz, F. J.</author><author>Smayevsky, J.</author><author>Bell, J.</author><author>Jones, R. N.</author><author>Beach, M.</author></authors></contributors><auth-address>Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA. daniel-diekema@uiowa.edu</auth-address><titles><title>Survey of infections due to Staphylococcus species: frequency of occurrence and antimicrobial susceptibility of isolates collected in the United States, Canada, Latin America, Europe, and the Western Pacific region for the SENTRY Antimicrobial Surveillance Program, 1997-1999Clin Infect DisClin Infect DisS114-3232 Suppl 2Anti-Bacterial Agents/therapeutic useCanada/epidemiologyDrug Resistance, MicrobialEurope/epidemiologyFar East/epidemiologyHumansLatin America/epidemiologyMethicillin ResistanceMicrobial Sensitivity TestsStaphylococcal Infections/drug therapy/*epidemiologyUnited States/epidemiology2001May 1511320452http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11320452 (26) U Hrvatskoj je 2005. godine postotak MRSA meu S.aureus izolatima iznosio 19,98 % u  ADDIN EN.CITE <EndNote><Cite><Author>Tambic Andraaevic</Author><Year>2006</Year><RecNum>434</RecNum><record><rec-number>434</rec-number><ref-type name="Report">27</ref-type><style face="normal" font="default" charset="238" size="100%">Osjetljivost i rezistencija bakterija na antibiotike u Republici Hrvatskoj u 2005. godini</style>MMWR Morb Mortal Wkly Rep200441041017<style face="normal" font="default" charset="238" size="100%">From the Centers for Disease Control and Prevention.Community-Associated Methicillin-Resistant Staphylococcus aureus Infection Among Healty Newborns-Chicago and Los Angeles County</style>MMWR Morb Mortal Wkly RepZaoutis200640440417Zaoutis, T. E.Toltzis, P.Chu, J.Abrams, T.Dul, M.Kim, J.McGowan, K. L.Coffin, S. E.Division of Infectious Diseases , Children's Hospital of Philadelphia, PA, USA. zaoutis@email.chop.eduClinical and molecular epidemiology of community-acquired methicillin-resistant Staphylococcus aureus infections among children with risk factors for health care-associated infection: 2001-2003Pediatr Infect Dis JPediatr Infect Dis J343-8254ChildChild, PreschoolCommunity-Acquired Infections/*epidemiology/microbiologyCross Infection/*epidemiology/microbiologyEpidemiology, MolecularHumansInfant*Methicillin ResistanceResearch Support, N.I.H., ExtramuralResearch Support, Non-U.S. Gov'tRisk FactorsStaphylococcal Infections/*epidemiology/microbiologyStaphylococcus aureus/classification/*drug effects/genetics/isolation &purification2006Apr16567987http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16567987 (37, 38). Infekcije koje izvanbolni ki MRSA uzrokuju obi no su teake ko~ne infekcije (celulitis, nekrotizirajui fasciitis) i nekrotizirajue pneumonije  ADDIN EN.CITE <EndNote><Cite><Author>Naimi</Author><Year>2003</Year><RecNum>170</RecNum><record>17017Naimi, T. S.LeDell, K. H.Como-Sabetti, K.Borchardt, S. M.Boxrud, D. J.Etienne, J.Johnson, S. K.Vandenesch, F.Fridkin, S.O'Boyle, C.Danila, R. N.Lynfield, R.Acute Disease Investigation and Control Section, Minnesota Department of Health, Minneapolis, USA. tbn7@cdc.govComparison of community- and health care-associated methicillin-resistant Staphylococcus aureus infectionJamaJama2976-8429022AdultAgedCohort StudiesCommunity-Acquired Infections/*epidemiology/microbiologyComparative StudyCross Infection/*epidemiology/microbiologyElectrophoresis, Gel, Pulsed-FieldHumans*Methicillin ResistanceMicrobial Sensitivity TestsMiddle AgedMinnesota/epidemiologyResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.Staphylococcal Infections/*epidemiology/*microbiologyStaphylococcus aureus/*drug effects/genetics2003Dec 1014665659http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14665659 (39). Izvanbolni ke MRSA izolate karakterizira posjedovanje SCCmec tipa IV i V  ADDIN EN.CITE <EndNote><Cite><Author>Ito</Author><Year>2003</Year><RecNum>17</RecNum><record><rec-number>17</rec-number><ref-type name="Journal Article">17</ref-type><contributors>Ito, T.Okuma, K.Ma, X. X.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. teruybac@med.juntendo.ac.jpInsights on antibiotic resistance of Staphylococcus aureus from its whole genome: genomic island SCCDrug Resist UpdatDrug Resist Updat41-5261Community-Acquired Infections/drug therapy/microbiologyCross Infection/drug therapy/microbiologyDNA Transposable ElementsDrug Resistance, Bacterial/*geneticsDrug Resistance, Multiple, Bacterial/genetics*Genome, BacterialMethicillin Resistance/geneticsMutationStaphylococcal Infections/drug therapy/microbiologyStaphylococcus aureus/drug effects/*genetics2003Feb12654286http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12654286 Ito2004141417Ito, T.Ma, X. X.Takeuchi, F.Okuma, K.Yuzawa, H.Hiramatsu, K.Department of Bacteriology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, Japan. teruybac@med.juntendo.ac.jpNovel type V staphylococcal cassette chromosome mec driven by a novel cassette chromosome recombinase, ccrCAntimicrob Agents ChemotherAntimicrob Agents Chemother2637-51487Amino Acid Sequence*Bacterial ProteinsBase SequenceChromosomes, Bacterial/*geneticsDNA PrimersDNA Transposable Elements/geneticsDNA, Bacterial/geneticsMethicillin ResistanceMolecular Sequence DataOpen Reading Frames/geneticsPhylogenyPlasmids/geneticsRecombinases/*genetics/*metabolismRecombination, GeneticReverse Transcriptase Polymerase Chain ReactionStaphylococcus aureus/*genetics2004Jul15215121http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15215121 (9, 12) kod kojih su SCCmec kasete manje nego kod bolni kih SCCmec tipova I, II I III. Manja koli ina genetskog materijala, vea virulencija, br~i rast u odnosu na bolni ke MRSA  ADDIN EN.CITE <EndNote><Cite><Author>Okuma</Author><Year>2002</Year><RecNum>18</RecNum><record><rec-number>1817Okuma, K.Iwakawa, K.Turnidge, J. D.Grubb, W. B.Bell, J. M.O'Brien, F. G.Coombs, G. W.Pearman, J. W.Tenover, F. C.Kapi, M.Tiensasitorn, C.Ito, T.Hiramatsu, K.Department of Bacteriology, Juntendo University, Tokyo, Japan. hiram@med.juntendo.ac.jpDissemination of new methicillin-resistant Staphylococcus aureus clones in the communityJ Clin MicrobiolJ Clin Microbiol4289-944011Anti-Bacterial Agents/pharmacologyAustralia/epidemiologyCommunity-Acquired Infections/*epidemiology/microbiologyHumansMethicillin Resistance/*geneticsMicrobial Sensitivity TestsResearch Support, Non-U.S. Gov'tStaphylococcal Infections/*epidemiology/microbiologyStaphylococcus aureus/classification/*drug effects/*genetics/growth &developmentUnited States/epidemiology2002Nov12409412http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12409412 (40), kao i bolja prilagodljivost domainu, ini izvanbolni ke MRSA iznimno va~nima. Opisani su i bolni ki MRSA sojevi SCCmec tipa IV, tako da taj podatak nije dovoljan da bi se soj smatrao izvanbolni kim MRSA sojem. Stoga se razli itim definicijama pokuaalo jasno odijeliti izvanbolni ke MRSA od bolni kih MRSA sojeva  ADDIN EN.CITE <EndNote><Cite><Author>Salgado</Author><Year>2003</Year><RecNum>301</RecNum><record><rec-number>301</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><author>Salgado, C. D.</author>Farr, B. M.Calfee, D. P.University of Virginia Health System, Charlottesville, VA 22908, USA.Community-acquired methicillin-resistant Staphylococcus aureus: a meta-analysis of prevalence and risk factorsClin Infect DisClin Infect Dis131-9362Community-Acquired Infections/*epidemiology/microbiologyCross Infection/microbiologyHumansMeta-Analysis*Methicillin ResistancePrevalenceRisk FactorsStaphylococcal Infections/*epidemiology/microbiology*Staphylococcus aureus2003Jan 1512522744http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12522744 (41). Centar za kontrolu i prevenciju bolesti (CDC) iz Atlante, SAD, definira izvanbolni ke MRSA kao sojeve izolirane u bolesnika koji nisu hospitalitzirani, ili u hospitaliziranih bolesnika unutar 48 sati od prijema u bolnicu. Nadalje, po definiciji se isklju uju izolati u bolesnika koji su imali prethodno dokumentiranu MRSA kolonizaciju, boravak u bolnici unatrag godinu dana, koji borave u ustanovi kroni nog tipa, dijaliziraju se ili su bili operirani unutar godine dana. Po definiciji se takoer ne uklju uju izolati bolesnika koji imaju trajni kateter ili pomagalo koje naruaava integritet ko~e  ADDIN EN.CITE <EndNote><Cite><Year>2005</Year><RecNum>433</RecNum><record><rec-number>433</rec-number><ref-type name="Journal Article">17</ref-type><contributors></contributors><titles><title><style face="normal" font="default" charset="238" size="100%">Community-associated Methicillin-Resistant Staphylococcus aureus (CA-MRSA)<style face="normal" font="default" charset="238" size="100%">Community-acquired methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> infections: a new source for nosocomial outbreaks.</style>Ann Intern MedLevine198233233217<style face="normal" font="default" charset="238" size="100%">Community-acquired methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus </style><style face="normal" font="default" charset="238" size="100%">endocarditis in the Detroit Medical Center</style>Ann Intern Med(47, 48) po inje se razmatrati mogunost postojanja rezervoara MRSA i u izvanbolni kom okru~enju. Prvi slu ajevi izvanbolni kih MRSA infekcija odnosili su se na intravenske ovisnike o drogama koji su koristili istu iglu i na taj na in se meusobno inficirali. Prvi izvanbolni ki MRSA izolat u Australiji opisan je 1993. godine  ADDIN EN.CITE <EndNote><Cite><Author>Udo</Author><Year>1993</Year><RecNum>173</RecNum><record><rec-number>173</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors>Udo, E. E.Pearman, J. W.Grubb, W. B.School of Biomedical Sciences, Curtin University of Technology, Perth, Western Australia.Genetic analysis of community isolates of methicillin-resistant Staphylococcus aureus in Western AustraliaJ Hosp InfectJ Hosp Infect97-108252Bacterial Typing TechniquesComparative StudyElectrophoresis, Gel, Pulsed-FieldHumansMethicillin Resistance/*geneticsMicrobial Sensitivity TestsPlasmids/genetics/isolation & purificationResearch Support, Non-U.S. Gov'tStaphylococcus aureus/classification/*genetics/isolation & purificationWestern Australia1993Oct7903093http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=7903093 (49). 1998. godine u SAD je istra~ivana prisutnost izvanbolni kih MRSA izolata u djece koja su se javljala lije niku u ambulante zbog drugih razloga, i naena je incidencija od 3% u jednoj i 24% u drugoj dje joj bolnici. Izolati su bili osjetljivi na ne-betalaktamske antibiotike a viae od 40% djece nije imalo direktne ili indirektne povezanosti s bolni kim ustanovama tijekom 2 godine prije istra~ivanja  ADDIN EN.CITE <EndNote><Cite><Author>Suggs</Author><Year>1999</Year><RecNum>312</RecNum><record><rec-number>31217Suggs, A. H.Maranan, M. C.Boyle-Vavra, S.Daum, R. S.Department of Pediatrics, The University of Chicago Children's Hospital, IL, USA.Methicillin-resistant and borderline methicillin-resistant asymptomatic Staphylococcus aureus colonization in children without identifiable risk factorsPediatr Infect Dis JPediatr Infect Dis J410-4185AdolescentCarrier State/*microbiologyChildChild, PreschoolHumansInfantInfant, Newborn*Methicillin ResistanceMicrobial Sensitivity TestsNose/microbiologyOxacillin/pharmacologyPenicillins/pharmacologyPerineum/microbiologyResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.Risk FactorsStaphylococcal Infections/*microbiologyStaphylococcus aureus/*drug effects/isolation & purification1999May10353512http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=10353512 (50). Takoer je primijeeno da se broj djece primljene u bolnicu s infekcijom uzrokovanom izvanbolni kim MRSA sojem tijekom razdoblja od 1990. do 1997. godine poveao 25 puta  ADDIN EN.CITE <EndNote><Cite><Author>Purcell</Author><Year>2005</Year><RecNum>34734717<style face="normal" font="default" charset="238" size="100%">Epidemic of community- acquired methicillin- resistant Staphylococcus aureus infections: a 14-year study at Driscoll Childrens Hospital</style>Purcell200534734717<style face="normal" font="default" charset="238" size="100%">Epidemic of community- acquired methicillin- resistant Staphylococcus aureus infections: a 14-year study at Driscoll Childrens Hospital</style>Zaoutis200640440417Zaoutis, T. E.Toltzis, P.Chu, J.Abrams, T.Dul, M.Kim, J.McGowan, K. L.Coffin, S. E.Division of Infectious Diseases , Children's Hospital of Philadelphia, PA, USA. zaoutis@email.chop.eduClinical and molecular epidemiology of community-acquired methicillin-resistant Staphylococcus aureus infections among children with risk factors for health care-associated infection: 2001-2003Pediatr Infect Dis JPediatr Infect Dis J343-8254ChildChild, PreschoolCommunity-Acquired Infections/*epidemiology/microbiologyCross Infection/*epidemiology/microbiologyEpidemiology, MolecularHumansInfant*Methicillin ResistanceResearch Support, N.I.H., ExtramuralResearch Support, Non-U.S. Gov'tRisk FactorsStaphylococcal Infections/*epidemiology/microbiologyStaphylococcus aureus/classification/*drug effects/genetics/isolation &purification2006Apr16567987http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16567987 (38, 51). 1999. godine etvoro djece iz Minesote i sjeverne Dakote je umrlo nakon teakih infekcija uzrokovanih izvanbolni kim MRSA  ADDIN EN.CITE <EndNote><Cite><Year>1999</Year><RecNum>298</RecNum><record><rec-number>298</rec-number><ref-type name="Journal Article">17</ref-type>From the Centers for Disease Control and Prevention. Four pediatric deaths from community-acquired methicillin-resistant Staphylococcus aureus--Minnesota and North Dakota, 1997-1999JamaJama1123-528212AdolescentChildCommunity-Acquired Infections/microbiologyElectrophoresis, Gel, Pulsed-FieldFatal OutcomeFemaleHumansInfantMale*Methicillin ResistanceMinnesotaNorth DakotaPneumonia, Bacterial/microbiologySepsis Syndrome/microbiologyStaphylococcal Infections/*microbiologyStaphylococcus aureus/*drug effects/genetics1999Sep 22-2910501104http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=10501104 (52). U Europi se prva izvijeaa o izvanbolni kim MRSA spominju 2001. godine  ADDIN EN.CITE <EndNote><Cite><Author>Salgado</Author><Year>2003</Year><RecNum>301</RecNum><record><rec-number>301</rec-number><ref-type name="Journal Article">17</ref-type><contributors>Salgado, C. D.Farr, B. M.Calfee, D. P.University of Virginia Health System, Charlottesville, VA 22908, USA.Community-acquired methicillin-resistant Staphylococcus aureus: a meta-analysis of prevalence and risk factorsClin Infect DisClin Infect Dis131-9362Community-Acquired Infections/*epidemiology/microbiologyCross Infection/microbiologyHumansMeta-Analysis*Methicillin ResistancePrevalenceRisk FactorsStaphylococcal Infections/*epidemiology/microbiology*Staphylococcus aureus2003Jan 1512522744http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12522744 (41). Analiza izvanbolni kih i bolni kih MRSA metodom elektroforeze u pulsirajuem polju (PFGE), pokazale su u po etku da su MRSA sojevi bili genetski sli ni  ADDIN EN.CITE <EndNote><Cite><Author>Johnson</Author><Year>2003</Year><RecNum>349</RecNum><record><rec-number>349</rec-number>17<style face="normal" font="default" charset="238" size="100%">Changing epidemiology of community-onset methicillin-resistant Staphylococcus aureus bacteremia. </style>Infect Control Hosp Epidemiol<style face="normal" font="default" charset="238" size="100%">Community-associated Methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%">, Canada</style>Emerg Infect Dis(61). Osjetljivost na eritromicin varira od 10 do 100%  ADDIN EN.CITE Eady200334834817<style face="normal" font="default" charset="238" size="100%">Staphylcoccal resistance revised: community-acquired methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus </style><style face="normal" font="default" charset="238" size="100%">-an emerging problem for the management of skin and soft tissue infections</style>Curr Opin Infect Dis(62), osjetljivost na klindamicin iznosi od 80 do 90%, veina izvanbolni kih MRSA je osjetljiva na ciprofloksacin, 95 % izolata je osjetljivo na sulfametoksazol-trimetoprim  ADDIN EN.CITE <EndNote><Cite><Author>Eady</Author><Year>2003</Year><RecNum>348</RecNum>34817<style face="normal" font="default" charset="238" size="100%">Staphylcoccal resistance revised: community-acquired methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus </style><style face="normal" font="default" charset="238" size="100%">-an emerging problem for the management of skin and soft tissue infections</style>Curr Opin Infect Dis<year><style face="normal" font="default" charset="238" size="100%">2003</style></year></dates><urls></urls></record></Cite></EndNote>(62). Prilikom definiranja izvanbolni kih MRSA postoji nekoliko problema, bilo da se radi o epidemioloakoj definiciji ili genetskoj definiciji izvanbolni kih MRSA. Ukoliko se ne provede molekularna analiza sojeva, odreen broj izvanbolni kih izolata mo~e se proglasiti bolni kima i obrnuto, jer je mogue da, koristei se epidemioloakim definicijama, bolesnik koji boravi u bolnici dulje od 48 sati, ako je koloniziran izvanbolni kim MRSA razvije infekciju tim sojem i, obrnuto, bolesnik mo~e biti inficiran bolni kim MRSA sojem kojim ga je kolonizirao netko iz kuanstva, okoline, tko je bio hospitaliziran prije viae godina i bio dugotrajno koloniziran bolni kim MRSA sojem. SCCmec tip IV u nekim zemljama  ADDIN EN.CITE <EndNote><Cite><Author>Dancer</Author><Year>2006</Year><RecNum>251</RecNum><record><rec-number>251</rec-number><ref-type name="Journal Article">17</ref-type>Dancer, S. J.Coyne, M.Speekenbrink, A.Samavedam, S.Kennedy, J.Wallace, P. G.Health Protection Scotland, Clifton House, Western Infirmary, Glasgow, Scotland. stephanie.dancer@sgh.scot.nhs.ukMRSA acquisition in an intensive care unitAm J Infect ControlAm J Infect Control10-7341Blood/microbiologyCross Infection/*epidemiology/microbiologyDNA FingerprintingDNA, Bacterial/analysis/isolation & purificationElectrophoresis, Gel, Pulsed-FieldEpidemiology, MolecularHand/microbiologyHumansInfection Control/methods*Intensive Care Units*Methicillin ResistanceNursing Staff, HospitalRetrospective StudiesStaphylococcal Infections/*epidemiology/microbiologyStaphylococcus aureus/classification/*drug effects/geneticsWorkload/statistics & numerical data2006Feb16443087http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16443087 Hanssen2005737317Hanssen, A. M.Fossum, A.Mikalsen, J.Halvorsen, D. S.Bukholm, G.Sollid, J. U.Department for Microbiology and Virology, Faculty of Medicine, Institute of Medical Biology, University of Tromso, N-9037 Tromso, Norway. annemh@fagmed.uit.noDissemination of community-acquired methicillin-resistant Staphylococcus aureus clones in northern Norway: sequence types 8 and 80 predominateJ Clin MicrobiolJ Clin Microbiol2118-24435Community-Acquired Infections/epidemiology/microbiology/*transmissionEpidemiology, Molecular/methodsHumans*Methicillin ResistanceMicrobial Sensitivity TestsNorway/epidemiologyPhylogenyResearch Support, Non-U.S. Gov'tSerotypingStaphylococcal Infections/epidemiology/microbiology/*transmissionStaphylococcus aureus/classification/drug effects/genetics/*isolation &purification2005May15872230http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15872230 (63, 64) je dominantan tip bolni kih MRSA koji se nalazi i u izvanbolni koj populaciji bez rizi nih faktora za bolni ke MRSA tako da se smatra da je smjer airenja bio iz zajednice u bolnice  ADDIN EN.CITE <EndNote><Cite><Author>Wannet</Author><Year>2004</Year><RecNum>74</RecNum>7417Wannet, W. J.Spalburg, E.Heck, M. E.Pluister, G. N.Willems, R. J.De Neeling, A. J.Diagnostic Laboratory for Infectious Diseases and Perinatal Screening, National Institute of Public Health and the Environment, P.O. Box 1, 3720 BA Bilthoven, The Netherlands. wim.wannet@rivm.nlWidespread dissemination in The Netherlands of the epidemic berlin methicillin-resistant Staphylococcus aureus clone with low-level resistance to oxacillinJ Clin MicrobiolJ Clin Microbiol3077-82427Drug Resistance, BacterialElectrophoresis, Gel, Pulsed-Field*Methicillin ResistanceNetherlandsOxacillin/*pharmacologyStaphylococcus aureus/*drug effects2004Jul15243063http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15243063 (65) a ne obrnuto. SCCmec tip IV je tipi an bolni ki izolat i u Velikoj Britaniji  ADDIN EN.CITE <EndNote><Cite><Author>Daum</Author><Year>2002</Year><RecNum>19</RecNum><record><rec-number>19</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><author>Daum, R. S.Ito, T.Hiramatsu, K.Hussain, F.Mongkolrattanothai, K.Jamklang, M.Boyle-Vavra, S.Department of Pediatrics, University of Chicago, Chicago, Illinois 60637, USA. rdaum@peds.bsd.uchicago.eduA novel methicillin-resistance cassette in community-acquired methicillin-resistant Staphylococcus aureus isolates of diverse genetic backgroundsJ Infect DisJ Infect Dis1344-71869Community-Acquired Infections/*transmissionCross Infection/transmissionHumansMethicillin Resistance/*geneticsPolymerase Chain ReactionResearch Support, U.S. Gov't, P.H.S.Staphylococcal Infections/*transmissionStaphylococcus aureus/classification/drug effects/*genetics2002Nov 112402206http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12402206 (66), gdje je poznat pod nazivom EMRSA-15, a i kao pedijatrijski klon u bolnicama irom svijeta  ADDIN EN.CITE Sanches199538838817<style face="normal" font="default" charset="238" size="100%">Tracing the origin of an outbreak of methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> infections in a Portugese hospital by molecular fingerprinting methods</style>Microb Drug Resist<style face="normal" font="default" charset="238" size="100%">Nosocomial transmission of community-associated methicillin-resisitant Staphylococcus aureus: an emerging threat</style>http://infection.thelancet.com<style face="normal" font="default" charset="238" size="100%">Methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus i</style><style face="normal" font="default" charset="238" size="100%">n the Australian community: an evolving epidemic</style>Med J Aust(70). Opisano je nekoliko PVL-pozitivnih MRSA SCCmec IV izolata Hrvatske  ADDIN EN.CITE Krzyston-Russjan200623023017Krzyston-Russjan, J.Tambic-Andrasevic, A.Bukovski, S.Sabat, A.Hryniewicz, W.First community-acquired methicillin-resistant Staphylococcus aureus (MRSA) strains in CroatiaClin Microbiol InfectClin Microbiol Infect697-8127Community-Acquired Infections/drug therapy/microbiologyCroatiaHumans*Methicillin Resistance/geneticsStaphylococcal Infections/drug therapy/*microbiologyStaphylococcus aureus/*drug effects/genetics2006Jul16774575http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16774575 (71), u opisu kojih su koritene genotipske zna ajke, bez epidemioloakih karakteristika. Dva su zemljopisno odijeljena klona izvanbolni kih MRSA, jedan je pandemijski, rasprostranjen u svijetu, (ST30) a ostali su specifi ni za odreene kontinente (ST1, ST8 i ST80). Pandemijski tip posjeduje gen za sijaloproteinski koatani adhezin, bbp, koji se povezuje s osteomijelitisom, a i gen za kolagenski adhezin, cna, koji, za razliku od bbp, mo~emo nai i u nepandemijskim tipovima  ADDIN EN.CITE <EndNote><Cite><Author>Otsuka</Author><Year>2006</Year>39639617<style face="normal" font="default" charset="238" size="100%">Key adhesin gene in community-acquired methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style>Biochem Biphys Res Commun(72). Podrijetlo izvanbolni kih MRSA Nije potpuno razjaanjeno je li SCCmec element izvanbolni kih MRSA dospio horizontalnim transferom u MSSA izolate  ADDIN EN.CITE <EndNote><Cite><Author>Mongkolrattanothai</Author><Year>2003</Year><RecNum>294</RecNum><record><rec-number>29417Mongkolrattanothai, K.Boyle, S.Kahana, M. D.Daum, R. S.Section of Pediatric Infectious Diseases, University of Chicago, Department of Pediatrics, Chicago, Illinois 60637, USA.Severe Staphylococcus aureus infections caused by clonally related community-acquired methicillin-susceptible and methicillin-resistant isolatesClin Infect DisClin Infect Dis1050-8378AdolescentAdultChildChild, PreschoolCommunity-Acquired Infections/*microbiologyFemaleHumansInfantMaleMethicillin/*pharmacologyMethicillin Resistance/*geneticsMicrobial Sensitivity TestsStaphylococcal Infections/*microbiologyStaphylococcus aureus/*drug effects/genetics2003Oct 1514523769http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14523769 </url></related-urls></urls></record></Cite></EndNote>(21) ili su izvanbolni ki MRSA nastali od bolni kih sojeva, te su, nakon ato su dospjeli u izvanbolni ku sredinu, u sredinu osloboenu antibiotskog pritiska, izgubili ostale gene rezistencije  ADDIN EN.CITE Aires de Sousa200318918917Aires de Sousa, M.de Lencastre, H.Laboratorio de Genetica Molecular, Instituto de Tecnologia Quimica e Biologica da Universidade Nova de Lisboa, Oeiras, Portugal.Evolution of sporadic isolates of methicillin-resistant Staphylococcus aureus (MRSA) in hospitals and their similarities to isolates of community-acquired MRSAJ Clin MicrobiolJ Clin Microbiol3806-15418AlgorithmsAmino Acid SequenceAsiaCommunity-Acquired Infections/*microbiologyCross Infection/*microbiologyEuropeEvolution, MolecularHumans*Methicillin ResistancePeptide Fragments/chemistryPrevalenceResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.South AmericaStaphylococcal Infections/*diagnosis/epidemiologyStaphylococcus aureus/drug effects/*genetics2003Aug12904393http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12904393 (73). U novijoj literaturi objavljeno je da bolni ki i izvanbolni ki MRSA imaju sli no podrijetlo. Dokazano je da se isti klon, penicilin-rezistentni fagotip 80/81, koji je harao svijetom 1950-tih, nastavio airiti u bolnicama i u izvanbolni koj sredini, a nakon uvoenja semisintetskih penicilina bio je eradiciran. Ponovo se javlja kao ST30 MSSA i PVL je pozitivan. Ovaj klon se ponovno proairio u razdoblju do 1990. godine, usvojio SCCmec kasetu i predstavlja dominantan izvanbolni ki MRSA u Australiji. ST30 je takoer usvojio i SCCmec tip II, i postupno, uz odreene mutacije postao ST36-MRSA-II, pandemijski EMRSA-16  ADDIN EN.CITE <EndNote><Cite><Author>Robinson</Author><Year>2005</Year><RecNum>190</RecNum><record><rec-number>190</rec-number><ref-type name="Journal Article">17</ref-type>Robinson, D. A.Kearns, A. M.Holmes, A.Morrison, D.Grundmann, H.Edwards, G.O'Brien, F. G.Tenover, F. C.McDougal, L. K.Monk, A. B.Enright, M. C.Department of Biology and Biochemistry, University of Bath, Bath, UK.Re-emergence of early pandemic Staphylococcus aureus as a community-acquired meticillin-resistant cloneLancetLancet1256-83659466Australia/epidemiologyBacteriophage TypingCanada/epidemiologyCommunity-Acquired InfectionsDisease OutbreaksGenes, BacterialGenotypeHumansLeukocidins/genetics*Methicillin ResistanceResearch Support, Non-U.S. Gov'tStaphylococcal Infections/*epidemiology/microbiologyStaphylococcus Phages/classificationStaphylococcus aureus/*genetics2005Apr 2-815811459<url>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=PubMed&amp;dopt=Citation&amp;list_uids=15811459 </url></related-urls></urls></record></Cite></EndNote>(74). Nadalje, tri SCCmec elementa koji sadr~e gene koji kodiraju biosinteti ke enzime za kapsularne polisaharide opisani su u MSSA, S.epidermidis i S.hominis. Ovi elementi imaju mnoge zajedni ke karakteristike sa SCCmec, uklju ujui i regulatorne gene i insercijske sekvence, ali im nedostaje mecA gen. Zanimljivo je da su sekvence u L-C regiji SCCmec tipa IV identi ne regiji pronaenoj kod S.epidermidis, ato sve ukazuje na ekstenzivan horizontalni transfer gena izmeu stafilokoknih vrsta  ADDIN EN.CITE <EndNote><Cite><Author>Wisplinghoff</Author><Year>2003</Year><RecNum>104</RecNum><record>10417Wisplinghoff, H.Rosato, A. E.Enright, M. C.Noto, M.Craig, W.Archer, G. L.Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia 23292, USA.Related clones containing SCCmec type IV predominate among clinically significant Staphylococcus epidermidis isolatesAntimicrob Agents ChemotherAntimicrob Agents Chemother3574-94711AllelesBacterial Proteins/*geneticsDNA PrimersGenotypeMethicillin ResistanceResearch Support, U.S. Gov't, P.H.S.Reverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/*microbiologyStaphylococcus epidermidis/*genetics2003Nov14576120http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14576120 (25). Zanimljiva je injenica da je SSCmec tip IV elemant bio dominantan u izolatima Staphylococcus epidermidis i 1970-tih godina a da je rijetka pojava meu S.aureus prije 1990. godine  ADDIN EN.CITE <EndNote><Cite><Author>Luong</Author><Year>200233633617<style face="normal" font="default" charset="238" size="100%">Type 1 capsule genes of Staphylococcus aureus are carried in a staphylococcal cassette chromosome genetic element.</style>J BacteriolWisplinghoff200310410417Wisplinghoff, H.Rosato, A. E.Enright, M. C.Noto, M.Craig, W.Archer, G. L.Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia 23292, USA.Related clones containing SCCmec type IV predominate among clinically significant Staphylococcus epidermidis isolatesAntimicrob Agents ChemotherAntimicrob Agents Chemother3574-94711AllelesBacterial Proteins/*geneticsDNA PrimersGenotypeMethicillin ResistanceResearch Support, U.S. Gov't, P.H.S.Reverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/*microbiologyStaphylococcus epidermidis/*genetics2003Nov14576120http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14576120 (25, 75). Jedan od pristupa istra~ivanju podrijetla MRSA je paralelna analiza genoma S.aureus i ostalih stafilokoknih vrsta da bi se utvrdila sli nost gena razistencije i otkrio mehanizam i smjer genskog transfera  ADDIN EN.CITE <EndNote><Cite><Author>Hanssen</Author>2004727217Hanssen, A. M.Kjeldsen, G.Sollid, J. U.Department of Microbiology and Virology, Institute of Medical Biology, University of Tromso, Tromso, Norway. annemh@fagmed.uit.noLocal variants of Staphylococcal cassette chromosome mec in sporadic methicillin-resistant Staphylococcus aureus and methicillin-resistant coagulase-negative Staphylococci: evidence of horizontal gene transfer?Antimicrob Agents ChemotherAntimicrob Agents Chemother285-96481Blotting, SouthernCoagulase/metabolismDNA, Bacterial/chemistry/geneticsElectrophoresis, Polyacrylamide GelGene Transfer, Horizontal/*geneticsGenotypeHumansMethicillin Resistance/*geneticsMicrobial Sensitivity TestsPhenotypePhylogenyRNA, Bacterial/chemistry/geneticsResearch Support, Non-U.S. Gov'tReverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/microbiologyStaphylococcus aureus/*drug effects/enzymology/*genetics2004Jan14693553http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=14693553 (76). Naena je dobra konzerviranost nukleotidnih sekvenci ccrAB alela na istom zemljopisnom podru ju a meu razli itim stafilokoknim vrstama, S.warneri i S.epidermidis zajedno sa S.aureus. Malo se zna o strukturi SCCmec kompleksa u koagulaza-negativnih stafilokoka (KNS)  ADDIN EN.CITE CoNS917Ma, X. X.Galiana, A.Pedreira, W.Mowszowicz, M.Christophersen, I.Machiavello, S.Lope, L.Benaderet, S.Buela, F.Vincentino, W.Albini, M.Bertaux, O.Constenla, I.Bagnulo, H.Llosa, L.Ito, T.Hiramatsu, K.Juntendo University, Tokyo, Japan.Community-acquired methicillin-resistant Staphylococcus aureus, UruguayEmerg Infect DisEmerg Infect Dis973-6116Adhesins, Bacterial/geneticsAdultAnti-Bacterial Agents/pharmacologyCommunity-Acquired Infections/*epidemiology/microbiology/mortality*Disease Outbreaks*Drug Resistance, Multiple, Bacterial/geneticsHumansLeukocidins/genetics*Methicillin ResistanceMicrobial Sensitivity TestsMiddle AgedResearch Support, Non-U.S. Gov'tStaphylococcal Infections/*epidemiology/microbiology/mortalityStaphylococcus aureus/*drug effects/genetics/pathogenicityUruguay/epidemiology2005Jun15963301http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15963301 </url></related-urls></urls></record></Cite></EndNote>(17), veina studija koncentrirana je na MRSA, ali postoje sna~ni argumenti koji govore o KNS kao izvoru gena rezistencije za S.aureus a i druge gram-pozitivne mikroorganizme  ADDIN EN.CITE <EndNote>John199338138117<style face="normal" font="default" charset="238" size="100%">Widespread colonisation of personnel at a Veterans Affairs medical center by methicillin-resistant, coagulase-negative Staphylococus</style>Clin Infect DisKlingenberg200138238217<style face="normal" font="default" charset="238" size="100%">Rapid PCR detection of the methicillin-resistance gene, mecA, on the hands of medical and non-medical personnel and healthy children and on surfaces in a neonatal intensive care unit</style>Scand J Infect DisMcDonnel198338338317<style face="normal" font="default" charset="238" size="100%">Conjugational transfer ofj gentamicin resistance plasmids intra-and interspecifically in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus </style><style face="normal" font="default" charset="238" size="100%">and </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus epidermdis </style>Antimicrob Agents ChemotherMonsen199938438417<style face="normal" font="default" charset="238" size="100%">Antibiotic susceptibility of staphylococci isolated in blood cultures in relation to antibiotic consumption in hospital wards</style>Scand J Infect Dis(77-80). Nema jednozna nih pokazatelja mehanizma i smjera, ni mikroorganizma koji bi bio odgovoran za mecA transfer, ali neki autori sugeriraju da se transfer mecA odvio iz KNS u S.aureus  ADDIN EN.CITE <EndNote><Cite><Author>Archer</Author><Year>1994</Year><RecNum>38538517<style face="normal" font="default" charset="238" size="100%">Dissemination among staphylococci of DNA sequences associated with methicillin-resistance </style>Antimicrob Agents Chemother(81). Wielders i suradnici su izvijestili o moguem horizontalnom in vivo transferu mecA u S.aureus uz prisutnost meticilin-rezistentnog izolata KNS za vrijeme antibiotske terapije, gdje je de novo nastao MRSA soj  ADDIN EN.CITE <EndNote><Cite><Author>Wielders</Author><Year>2001</Year><RecNum>295</RecNum>29517Wielders, C. L.Vriens, M. R.Brisse, S.de Graaf-Miltenburg, L. A.Troelstra, A.Fleer, A.Schmitz, F. J.Verhoef, J.Fluit, A. C.In-vivo transfer of mecA DNA to Staphylococcus aureus [corrected]LancetLancet1674-53579269Bacteremia/microbiology*Bacterial ProteinsCarrier Proteins/*geneticsCross Infection/microbiologyDNA FingerprintingDNA, Bacterial/*geneticsGene Transfer, Horizontal/*geneticsGenotype*HexosyltransferasesHumansInfant, NewbornMaleMicrobial Sensitivity TestsMuramoylpentapeptide Carboxypeptidase/*geneticsPenicillin-Binding Proteins*Peptidyl TransferasesStaphylococcal Infections/microbiologyStaphylococcus aureus/*genetics2001May 2611425376http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11425376 (22). Postojanje homologa SCCmec genu kod komenzalne stafilokokne vrste potvruje tvrdnju o rezervoaru rezistentnih genskih dijelova kod drugih stafilokoknih vrsta  ADDIN EN.CITE <EndNote><Cite><Author>Mongkolrattanothai</Author><Year>2004</Year><RecNum>81</RecNum><record><rec-number>81</rec-number>17Mongkolrattanothai, K.Boyle, S.Murphy, T. V.Daum, R. S.Section of Pediatric Infectious Diseases, Department of Pediatrics, University of Chicago, Chicago, Illinois 60637, USA.Novel non-mecA-containing staphylococcal chromosomal cassette composite island containing pbp4 and tagF genes in a commensal staphylococcal species: a possible reservoir for antibiotic resistance islands in Staphylococcus aureusAntimicrob Agents ChemotherAntimicrob Agents Chemother1823-36485Amino Acid SequenceBacterial Proteins/*geneticsBase SequenceCarrier Proteins/*geneticsChildChromosomes, Bacterial/*geneticsDNA, Bacterial/geneticsDrug Resistance, Bacterial/*geneticsHexosyltransferases/*geneticsHumansMethicillin Resistance/geneticsMolecular Sequence DataMultigene Family/geneticsMuramoylpentapeptide Carboxypeptidase/*geneticsPenicillin-Binding ProteinsPeptidyl Transferases/*geneticsPolymorphism, Restriction Fragment LengthPregnancy Proteins/*geneticsRecombination, GeneticRepetitive Sequences, Nucleic AcidResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.Reverse Transcriptase Polymerase Chain ReactionStaphylococcal Infections/microbiologyStaphylococcus/drug effects/*geneticsStaphylococcus aureus/drug effects/geneticsStaphylococcus epidermidis/drug effects/geneticsTransferases (Other Substituted Phosphate Groups)/*genetics2004May15105141http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15105141 (18). Smatra se da je horizontalnim transferom SCCmec tipa IV, kojeg je esto mogue nai meu zdravim pojedincima, doalo do konverzije kolonizirajueg S.aureus u MRSA  ADDIN EN.CITE <EndNote><Cite><Author>Hiramatsu</Author><Year>2001</Year><RecNum>252517Hiramatsu, K.Cui, L.Kuroda, M.Ito, T.Department of Bacteriology, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo 113-8421, Japan. hiram@med.juntendo.ac.jpThe emergence and evolution of methicillin-resistant Staphylococcus aureusTrends MicrobiolTrends Microbiol486-93910*Bacterial ProteinsCarrier Proteins/geneticsDNA Transposable ElementsEpidemiology, Molecular*Evolution, Molecular*HexosyltransferasesHumansMethicillin Resistance/*geneticsMuramoylpentapeptide Carboxypeptidase/geneticsMutagenesis, InsertionalPenicillin-Binding Proteins*Peptidyl TransferasesResearch Support, Non-U.S. Gov'tStaphylococcal Infections/epidemiologyStaphylococcus aureus/*drug effects/geneticsVancomycin Resistance/geneticsbeta-Lactamases/genetics2001Oct11597450http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11597450 (82). Vrijedno je spomenuti joa jedan potencijalni rezervoar za izvanbolni ke MRSA, radi se o prijenosu MRSA iz ~ivotinja  ADDIN EN.CITE <EndNote><Cite><Author>van Duijkeren</Author><Year>2004</Year><RecNum>75</RecNum><record><rec-number>75</rec-number><ref-type name="Journal Article">17van Duijkeren, E.Box, A. T.Heck, M. E.Wannet, W. J.Fluit, A. C.Bacteriology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, P.O. Box 80165, 3508 TD Utrecht, The Netherlands. E.duijkeren@vet.uu.nlMethicillin-resistant staphylococci isolated from animalsVet MicrobiolVet Microbiol91-71031-2Animal Diseases/*microbiologyAnimalsAnti-Bacterial Agents/*pharmacologyDNA, Bacterial/chemistry/geneticsElectrophoresis, Gel, Pulsed-Field/veterinary*Methicillin ResistanceMicrobial Sensitivity Tests/veterinaryNetherlandsOxacillin/*pharmacologyPolymerase Chain Reaction/veterinaryRNA, Ribosomal, 16S/chemistry/geneticsStaphylococcal Infections/microbiology/*veterinaryStaphylococcus/*drug effects/genetics/isolation & purification2004Oct 515381271<related-urls><url>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=PubMed&amp;dopt=Citation&amp;list_uids=15381271 </url></related-urls></urls></record></Cite></EndNote>(83), bilo da je rije  o ljubimcu, psu  ADDIN EN.CITE <EndNote><Cite>van Duijkeren2004777717van Duijkeren, E.Wolfhagen, M. J.Box, A. T.Heck, M. E.Wannet, W. J.Fluit, A. C.Faculty of Veterinary Medicine, Utrecht, The Netherlands. E.duijkeren@vet.uu.nlHuman-to-dog transmission of methicillin-resistant Staphylococcus aureusEmerg Infect DisEmerg Infect Dis2235-71012AdultAnimalsCarrier State/*transmission/veterinaryDog Diseases/microbiology/*transmissionDogsFemaleHumansInfantMaleMethicillin Resistance/*geneticsStaphylococcal Infections/*transmission/veterinaryStaphylococcus aureus/genetics/*isolation & purification*Zoonoses2004Dec15663871http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15663871 </url></related-urls></urls></record></Cite></EndNote>(84), konju, ma ki, ili kolonizacija prijelazom MRSA s ~ivotinja u gospodarstvu, svinja, kravljeg mlijeka  ADDIN EN.CITE <EndNote><Cite><Author>Kwon</Author><Year>2005</Year><RecNum>686817Kwon, N. H.Park, K. T.Moon, J. S.Jung, W. K.Kim, S. H.Kim, J. M.Hong, S. K.Koo, H. C.Joo, Y. S.Park, Y. H.Department of Microbiology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Shillim dong, Gwanak gu, Seoul 151-742, Korea.Staphylococcal cassette chromosome mec (SCCmec) characterization and molecular analysis for methicillin-resistant Staphylococcus aureus and novel SCCmec subtype IVg isolated from bovine milk in KoreaJ Antimicrob ChemotherJ Antimicrob Chemother624-32564AnimalsBacterial Proteins/geneticsBase SequenceCattleHumansKoreaMethicillin/pharmacologyMethicillin Resistance/*geneticsMicrobial Sensitivity TestsMilk/*microbiologyMolecular Sequence DataPhylogenyResearch Support, Non-U.S. Gov'tStaphylococcal Infections/*microbiologyStaphylococcus aureus/classification/drug effects/*genetics/*isolation &purification2005Oct16126781http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16126781 (85) a sumnja postoji na prijenos s kontaminiranog pileeg mesa  ADDIN EN.CITE <EndNote><Cite><Author>Kwon</Author><Year>2006</Year><RecNum>397</RecNum><record><rec-number>397</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" charset="238" size="100%">Kwon, N. H.<style face="normal" font="default" charset="238" size="100%">Characteristics of methicillin-resistant </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> isolated from chicken meat and hospitalized dogs in Korea and their epidemiological relatedness</style>Vet Microbiol</dates><urls></urls></record></Cite></EndNote>(86). Algoritam detekcije izvanbolni kog MRSA S obzirom na injenicu da se u svijetu broj izvanbolni kih MRSA poveava, u dijagnosti kom i terapijskom pristupu izvanbolni kom bolesniku sa sumnjom na stafilokoknu infekciju potrebno je uzeti u obzir mogunost da se radi o MRSA soju. Sumnju na izvabolni ki MRSA soj treba postaviti kad se radi o teako bolesnim mladim ljudima koji su prethodno imali simptome sli ne gripi, o oboljelima od pneumonije koji imaju simptome hemoptize, visoko su febrilni, leukopeni ni i hipotenzivni. Takvi simptomi signaliziraju ~ivotno ugro~avajuu infekciju, nekrotizirajuu pneumoniju, ili septi ki aok i mogui letalni ishod. Zna ajan na in prezentacije infekcija koje uzrokuje izvanbolni ki MRSA jesu ko~ne infekcije, kod kojih se razvijaju apsces, furunkul, karbunkul, bez drena~e infekcije progrediraju u fasciitis, zatim duboke infekcije mekih tkiva, nakon kojih, ukoliko doe do izlje enja, ostaju deformacije tkiva. Dobar odabir uzorka za mikrobioloako testiranje, (brisa, aspirata rane, iskaaljaja ili aspirata traheje u slu aju lokalizirane infekcije, te krvi u slu aju sistemske infekcije i u slu aju pneumonije), brza detekcija MRSA u mikrobioloakom laboratoriju, kao i rezultati osjetljivosti na odgovarajue ne-betalatamske antibiotike doprinijeti e odgovarajuem lije anju infekcija i pravodobnom poduzimanju mjera kontrole infekcija s ciljem ato manjeg airenja vrlo prilagodljivih izvanbolni kih MRSA sojeva u ambulantama i bolni koj sredini. Prilikom obrade bolesnika s infekcijom uzrokovanom izvanbolni kim MRSA, potrebno je poduzeti mjere spre avanja airenja izolata, i izbjegavati zajedni ke predmete s drugim bolesnicima, kao i kod bolni kih MRSA. Smatra se da je relativno veliki broj epidemijskih infekcija izvanbolni kim MRSA izazvan upravo prenoaenjem patogena preko predmeta zajedni ke uporabe (sapuni, ru nici, britvice). Zabilje~en je i prijenos izvanbolni kih MRSA na laboratorijske radnike  ADDIN EN.CITE <EndNote><Cite><Author>Wagenvoort200622822817Wagenvoort, J. H.De Brauwer, E. I.Gronenschild, J. M.Toenbreker, H. M.Bonnemayers, G. P.Bilkert-Mooiman, M. A.Department of Medical Microbiology, Atrium Medical Centre, Postbox 4446, 6401 CX, Heerlen, The Netherlands. medische.microbiologie@atriummc.nlLaboratory-acquired meticillin-resistant Staphylococcus aureus (MRSA) in two microbiology laboratory techniciansEur J Clin Microbiol Infect DisEur J Clin Microbiol Infect Dis470-22572006Jul16783560<urls><related-urls><url>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=PubMed&amp;dopt=Citation&amp;list_uids=16783560 </url></related-urls></urls></record></Cite></EndNote>(87), a i na lije nika koji je resuscitirao dijete oboljelo od nekrotizirajue pneumonije izazvane izvanbolni kim MRSA sojem  ADDIN EN.CITE <EndNote><Cite><Author>Chalumneau</Author><Year>2005</Year><RecNum>412</RecNum><record><rec-number>412</rec-number><ref-type name="Journal Article">17</ref-type><contributors><style face="normal" font="default" charset="238" size="100%">Transmission of Panton-Valentine Leukocidin-Producing </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus </style><style face="normal" font="default" charset="238" size="100%">to a Physician during Resuscitation of a Child</style>Clin Infect Dis<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother(89). Test vezane koagulaze, na predmetnom stakalcu, je brz ali 15% S.aureus izolata je negativno te takvi izolati trebaju potvrdu slobodne koagulaze. Lateks-aglutinacijski testovi za identifikaciju S.aureus naj eae su temeljeni na dokazu proteina A ili vezane koagulaze, pozitivan rezultat testa takoer pokazuju i izolati S.lugdunensis i S.schleifferi . Ispitivanje deoksiribonukleaze (DNA-za) mo~e se koristiti kao metoda probira ali zbog odreenog postotka DNA-za pozitivnih KNS, pozitivni izolati trebaju potvrdu dodatnog testa  ADDIN EN.CITE Brown200543243217<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother(89). Postoji niz komercijalnih biokemijskih testova i automatiziranih sustava za identifikaciju S.aureus, nedostatak im je visoka cijena i relativna sporost u odnosu na npr. testiranje vezane i slobodne koagulaze. Molekularni testovi su precizni, nema potrebe za konfirmativnim metodama, veina ih u osnovi sadr~i amplifikacijske tehnike. Ciljni geni su im: gen za nukleazu (nuc), koagulazu (coa), protein A (spa), femA i femB, Sa442, 16S rRNA i geni koji kodiraju proteine koji se ve~u na fibrinogen  ADDIN EN.CITE <EndNote><Cite><Author>Mason</Author><Year>2001</Year><RecNum>437</RecNum><record><rec-number>437</rec-number><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" charset="238" size="100%">Mason, W.J.<style face="normal" font="default" charset="238" size="100%">Multiplex PCR protocol for the diagnosis of staphylococcal infection </style>J Clin Microbiol(90). Zbog visoke cijene molekularnih metoda, njihova primjena se preporu uje samo u odreenim slu ajevima, u kojima kovencionalne metode daju dvojbene rezultate te kod izra~ene sumnje na MRSA infekciju  ADDIN EN.CITE <EndNote><Cite><Author>Brown</Author><Year>2005</Year><RecNum>432</RecNum><record><rec-number>43217<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother</Cite></EndNote>(89). Ispitivanje osjetljivosti na meticilin (oksacilin) Nakon identifikacije slijedi testiranje osjetljivosti izolata na oksacilin/cefoksitin. Referentna metoda, zlatni standard u odreivanju meticilinske rezistencije je prisutnost mecA gena. Unato  tome, u veini rutinskih mikrobioloakih laboratorija se naj eae koriste fenotipske metode, disk-difuzija, i oksacilinska probirna plo a, a postoje i komercijalni i automatizirani sistemi za detekciju meticilinske rezistencije  ADDIN EN.CITE Brown200543243217<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother<style face="normal" font="default" charset="238" size="100%">Performace Standards for Antimicrobial Susceptibility Testing; Sixteenth Informational Supplement. CLSI document M-100</style>(91). Jo uvijek se, meutim, u odreivanju MIK upotrebljava oksacilin jer nema standardiziranih prijelomnih to ki za cefoksitin  ADDIN EN.CITE <EndNote><Cite><Author>Clinical and laboratory standards institute</Author><Year>2006</Year><RecNum>318</RecNum><record><rec-number>3186<style face="normal" font="default" charset="238" size="100%">Performace Standards for Antimicrobial Susceptibility Testing; Sixteenth Informational Supplement. CLSI document M-100</style>(91). U izboru medija i podloga za testiranje osjetljivosti najkonzistentniji rezultati dobivaju se uz koriatenje Mueller-Hinton (MH) medija. Vrijeme inkubacije u metodi disk difuzije a i dilucijskim metodama (agar diluciji i diluciji u bujonu), preporu eno za detekciju oksacilinske rezistencije je 24 sata, vrijeme za detekciju rezistencije primjenom cefoksitina je takoer 24 sata iako odreeni autori sugeriraju da nema razlike u osjetljivosti i specifi nosti ako se inkubacija skrati na 18 sati  ADDIN EN.CITE <EndNote>Skov200643643617<style face="normal" font="default" charset="238" size="100%">Phenotypic Detection of Methicillin Resistance in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> by Disk-Diffusion Testing and Etest on Mueller-Hinton Agar</style>J Clin Microbiol(92). Primjenom E testa (AB Biodisk, Solna, vedska) oksacilina i cefoksitina dobivaju se vrijednosti MIK-a usporedive s ostalim MIK i difuzijskim metodama, uz upotrebu MH agara s 2% NaCl , standardnim inokulumom kao i za disk-difuziju (0,5 McFalrland- do 1 McFarland) i vremenom inkubacije od 24 ili, za cefoksitin 18 sati  ADDIN EN.CITE Skov200643643617<style face="normal" font="default" charset="238" size="100%">Phenotypic Detection of Methicillin Resistance in </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> by Disk-Diffusion Testing and Etest on Mueller-Hinton Agar</style>J Clin Microbiol(92). Prednost E testa je jednostavnost primjene a nedostatak relativno visoka cijena. Upotreba probirne plo e s 6 mg/L oksacilina i 4% NaCl takoer je metoda kojom se mo~e utvrditi meticilinska rezistencija. Izolati koji su mecA pozitivni s izrazito heterogenom populacijom mogu biti zamijenjeni s izolatima grani no rezistentnima na oksacilin (BORSA). Tipi no za izolate koji produciraju velike koli ine beta-laktamaze je da u disk difuziji imaju smanjenu zonu inhibicije, za razliku od pravih MRSA koji uope ne pokazuju zonu inhibicije oko testiranog diska  ADDIN EN.CITE <EndNote><Cite><Author>Brown200543243217<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother<urls></urls></record></Cite></EndNote>(89). Detekcija MRSA u probirnim ( screening) uzorcima Probir MRSA izolata na krutim podlogama s ili bez prethodnog inkubiranja u tekuem obogaujuem mediju je naj eae opisan. U tu svhu koriste se agar s manitolom i NaCl (engl. mannitol salt agar, MSA), oksacilinski porbirni agar (egl oxacillin resistance screening agar, ORSAB), Baird-Parker podloga s ciprofloksacinom (BPC), kao i vie vrsta kromogenih agara (MRSA Select, Bio-Rad; CHROMagar MRSA-BioConnections; MRSA ID, BioMerieux). Za poveanje osjetljivosti probira, esto se za detekciju MRSA uzoraka koji nisu primarno sterilni provede prekonona inkubacija u tekuem hranjivom mediju s antibioticima i nakon toga zasijava na krutu podlogu. U istoj epruveti inkubira se viae probirnih uzoraka istodobno, ato poveava vjerojatnost otkrivanja kliconoatva a smanjuje i cijenu pretrage. Naj eae koriatene tekue podloge su MH bujon, mo~dano-sr ani bujon (engl. brain-heart infusion broth, BHI ), triptonski soja bujon, Robertsonov hranjivi bujon, a selektivne tvari su obi no NaCl i oksacilin ili cefoksitin a takoer su opisane tekue podloge kojima su inkorporirani indikatori rasta  ADDIN EN.CITE <EndNote><Cite><Author>Brown</Author><Year>2005</Year><RecNum>432</RecNum><record><rec-number>432</rec-number>17<style face="normal" font="default" charset="238" size="100%">Guidelines for the laboratory diagnosis and susceptibility testing of methicillin-resistant Staphylococcus aureus (MRSA)</style>J Antimicrob Chemother(89). Ne postoji takav medij u kome bi bilo mogue otkriti svaki MRSA soj, kombinacijom raspolo~ivih metoda po~eljno bi bilo u svakom laboratoriju podii osjetljivost i brzinu detekcije MRSA probirnih izolata. Novije metode molekularne dijagnostike koje istodobno otkrivaju mecA gen i dio genoma koji je specifi an za S. aureus predstavljaju zna ajan pomak u detekciji MRSA iz probirnih izolata. Novije PCR metode ne koriste amplifikaciju mecA kao dokaz MRSA, jer postoji mogunost dobivanja la~no-pozitivnih rezultata amplifikacijom mecA gena koagulaza-negativnih stafilokoka koji mogu kontaminirati uzorak. IDI-MRSA (Infecto Diagnostic, Kanada - BD) i GenoType MRSA Direct (Hain Lifescience, Njema ka), detektiraju dio orfX gena, koji je specifi an za S.aureus i susjedni dio SCCmec kromosomske regije. Na taj na in se jednom PCR reakcijom detektira MRSA iz nesterilnih uzoraka. Rezultati se dobiju za 2-4 sata. Mali broj rutinskih laboratorija u Hrvatskoj ima na raspolaganju molekularne metode, pa su one ograni ene na velike i referentne centre. Brza detekcija virulentnih izvanbolni kih MRSA sojeva va~na je i zbog primjene mjera spre avanja prenoaenja infekcija prilikom prijema u bolnicu  ADDIN EN.CITE <EndNote><Cite><Author>Becker</Author><Year>2003</Year>32032017<style face="normal" font="default" charset="238" size="100%">Prevalence of genes encoding pyrogenic toxin superantigens and exfoliative toxins among strains of </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> isolated from blood and nasal specimens. </style>J Clin Microbiol(94) bolesnika s izvanbolni kom MRSA infekcijom i boravka na odjelima s teakim bolesnicima za koje infekcija mo~e imati fatalan u inak. Neki autori sugeriraju probir bolesnika u jedinicama intenzivne njege s ciljem poboljaanja ishoda lije enja  ADDIN EN.CITE <EndNote><Cite>Wilson200622622617Wilson, A. P.Hayman, S.Cepeda, J. A.Singer, M.Bellingan, G.Department of Clinical Microbiology, University College London Hospitals, London, UK.Screening for MRSA and GISA in the intensive care unitJ Hosp InfectJ Hosp Infect85-66412006Sep16820246http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16820246 (95). Lije enje infekcija izazvanih izvanbolni kim MRSA sojevima Pri izboru antibiotika za empirijsko lije enje infekcija koje u izvanbolni kih bolesnika uzrokuju stafilokoki potrebno je uzeti u obzir te~inu infekcije, prisutnost rizi nih faktora za bolni ki MRSA i lokalnu prevalenciju izvanbolni kih MRSA. Vankomicin se smatra lijekom izbora kod teakih, po ~ivot opasnih infekcija u podru jima s velikom prevalencijom izvanbolni kih MRSA, dok se linezolid smatra lijekom drugog izbora u takvim slu ajevima  ADDIN EN.CITE Bradley200535135117<style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> pneumonia: emergence of MRSA in the community</style>Semin Respir Crit Care Med(96). Nedavno su se pojavile pretpostavke  ADDIN EN.CITE Micek2005 43143117<style face="normal" font="default" charset="238" size="100%">Pleuropulmonary Complications of Panton-Valentine Leucocidin-Positive Community-Acquired Methicillin-Resistant Staphylococcus aureus: importance of Treatment With Antimicrobials Inhibiting Exotoxin Production</style>Chest(97) da bi u slu aju infekcija izazvanih izvanbolni kim MRSA koji proizvode PVL toksin najefikasniji bili antibiotici koji djeluju na ribosomalnu translaciju proteina kao ato su linezolid i klindamicin, zbog redukcije produkcije toksina; no, prije nego ato se primijeni ovaj na in lije enja, potrebna je in vivo potvrda. U empirijskoj terapiji lakaih infekcija, pri sumnji na stafilokoknog uzro nika, razumno je i dalje primjenjivatii kloksacilin, ili alternativni antibiotik u slu aju alergije ili intolerancije, ako je veliki broj stafilokoka ipak osjetljiv na beta-laktamske antibiotike . Nakon ato se identificira MRSA kao uzro nik infekcije, terapija se mijenja prema antibiogramu. U tom slu aju preporu uju se brojni antibiotici (npr. klindamicin osim u slu ajevima inducibilne rezistencije). Upotreba tetraciklina kao ato je doksiciklin mogua je u ovim slu ajevima, kao i primjena sulfametoksazol-trimetoprima, koji se pokazao jednako vrijednim kao i vankomicin u lije anju teakih MRSA infekcija intravenskih ovisnika o drogama, a uspjeanim se pokazao i u lije enju lakaih izvanbolni kih MRSA infekcija  ADDIN EN.CITE <EndNote><Cite><Author>Markowitz</Author><Year>1992</Year><RecNum>350</RecNum><record><rec-number>350</rec-number><ref-type name="Journal Article">17</ref-type><style face="normal" font="default" charset="238" size="100%">Trimethoprim-Sulfamethoxazole Compared with Vancomycin for the Treatment of </style><style face="italic" font="default" charset="238" size="100%">Staphylococcus aureus</style><style face="normal" font="default" charset="238" size="100%"> Infection</style>Ann Intern Med(98).  ADDIN EN.REFLIST 1. Jessen O, Rosendal K, Bulow P, Faber V, Eriksen K R, Changing staphylococci and staphylococcal infections. 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P8ClnpbTLͻ͎͜||͜|k]]hlCJOJQJ^JaJ hh*!CJOJQJ^JaJ#jh;p!CJOJQJU^JaJh;p!CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ#jh8V CJOJQJU^JaJh8V CJOJQJ^JaJ hh;p!CJOJQJ^JaJ hhu'CJOJQJ^JaJU!l~~~p^M hhGCJOJQJ^JaJ#hh*!6CJOJQJ^JaJh;p!CJOJQJ^JaJ#jhoaCJOJQJU^JaJ hh*!CJOJQJ^JaJhoaCJOJQJ^JaJ hhu'CJOJQJ^JaJh8V CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ#jhlCJOJQJU^JaJlnf h j n p r t   0  °‘ހkk‘kY#h;p!h;p!6CJOJQJ^JaJ)jhhXCJOJQJU^JaJ hhu'CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ#jh8V CJOJQJU^JaJh8V CJOJQJ^JaJh;p!CJOJQJ^JaJ hhGCJOJQJ^JaJ hhXCJOJQJ^JaJ  b       ^ ` b XZ\`bdhj˽˽ˬ˞~mm[I7#hhVS>*CJOJQJ^JaJ#hhG>*CJOJQJ^JaJ#hhX>*CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ#jh8V CJOJQJU^JaJh8V CJOJQJ^JaJ hh;p!CJOJQJ^JaJh;p!CJOJQJ^JaJ hhGCJOJQJ^JaJ hhXCJOJQJ^JaJ#hhX6CJOJQJ^JaJt~$$$$$$"$<&F&&&0'ν߽߽ߡߡpp_M_M_#hhX6CJOJQJ^JaJ hhXCJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ#jh8V CJOJQJU^JaJh8V CJOJQJ^JaJh{CJOJQJ^JaJ hhGCJOJQJ^JaJ hhoaCJOJQJ^JaJhoaCJOJQJ^JaJ#hhG>*CJOJQJ^JaJ"$0'<+R,99x:z:B~JLVVVVVVWKXYYoZZt[+\\]]$0d^`0a$gdTMe $da$gd0'''D(J((((("),)))) *2*8*+"+R,^,,,t-v-Q3R3S3U3V3W34444559999999x:﷩﷩y hhvCJOJQJ^JaJh8V CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ)jhhH|}CJOJQJU^JaJ hhq wCJOJQJ^JaJ#hhH|}6CJOJQJ^JaJ hhH|}CJOJQJ^JaJ,x:z::,;==BBBBBBBBGGGGGGHZJhJMM8N:NPPVVVܶtttcQܶ#hhv6CJOJQJ^JaJ hh[CJOJQJ^JaJ)jhh[CJOJQJU^JaJh8V CJOJQJ^JaJ h8V h8V CJOJQJ^JaJhTMeCJOJQJ^JaJ)jhhvCJOJQJU^JaJ hhq wCJOJQJ^JaJ hhvCJOJQJ^JaJ#hhv5CJOJQJ^JaJVVVVVVVVVV}W~WXXXXYYYZZZZZO[P[[ \\\;]<]^ ^^^<`=```̻mmmmmmmmmmmmm_hTMeCJOJQJ^JaJ#hTMehTMe6CJOJQJ^JaJ hTMehTMeCJOJQJ^JaJjhhbCJUaJhhbCJaJ hhH|}CJOJQJ^JaJ hhvCJOJQJ^JaJ)jhhvCJOJQJU^JaJ h8V h8V CJOJQJ^JaJh8V CJOJQJ^JaJ%]]N^'_k``aEbb%deefsgg'hi k~loHpqqQrpsstuv$0d^`0a$gdTMe`'as?sttuuXvYvqwrw3x4xxxyyyyzz{{||p}q}}}~~~~͘Θ|} U#hTMehTMe6CJOJQJ^JaJ hTMehTMeCJOJQJ^JaJVvwLxxyzz{|}P~ÙP xWԡp$0d^`0a$gdTMe50. 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J Clin Microbiol 2003;41:1434-1439. 95. Wilson A P, Hayman S, Cepeda J A, Singer M, Bellingan G, Screening for MRSA and GISA in the intensive care unit. J Hosp Infect 2006;64:85-6. 96. Bradley S F, Staphylococcus aureus pneumonia: emergence of MRSA in the community. Semin Respir Crit Care Med 2005;26:643-649. 97. Micek S T, Dunne M, Kollef M, Pleuropulmonary Complications of Panton-Valentine Leucocidin-Positive ComWXƝǝop01ǠϠРUkLMKL[\:;ޥ:;ئ٦է֧-Dtu?@̩ѪҪ<=˽˒$hTMehTMe0JCJOJQJ^JaJ/j#hTMeh>QCJOJQJU^JaJhTMeCJOJQJ^JaJ#jhTMeCJOJQJU^JaJ#hTMehTMe6CJOJQJ^JaJ hTMehTMeCJOJQJ^JaJ9poZ_f ]_mQ&yɳ̵ٶs$0d^`0a$gdTMe=GH $WX6K:P~GH"$t>?׾ؾIJ1;<_`abdeghjkmnjhL[0JUh7-jh7-UhhH|}CJaJjhhbCJUaJU#hTMehTMe6CJOJQJ^JaJ hTMehTMeCJOJQJ^JaJBndw^_acdfgijlmvwxh]hgdcN &`#$gdcN $da$gdTMe$0d^`0a$gdTMemunity-Acquired Methicillin-Resistant Staphylococcus aureus: importance of Treatment With Antimicrobials Inhibiting Exotoxin Production. Chest 2005 128:2732-2738. 98. 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